19112018 - trial notification bulk spodumene via berth 3

19 November 2018 HPRM D18/24372

Chief Executive Officer Department of Water and Environmental Regulation Locked Bag 33 CLOISTERS SQUARE WA 6850

Dear Chief Executive Officer

TRIAL NOTIFICATION: SOUTHERN PORTS (L5099/1974/14) – BULK SPODUMENE PRODUCTS FROM SHED 4 TO BERTH 3 SHIPLOADER

In accordance with Condition 2 of Environmental Licence L5099/1974/14 for the Southern Ports (SP), please consider this correspondence as formal Trial Notification relating to the export shipments of Mineral Resources Limited (MRL) Spodumene products from its Mt Marion operation using bulk loading methods..

Four products are produced at the Mt Marion operation; vary between 4-6% lithium and a coarse and fine product.

The Trial will commence 30 days from the date and time that this notification is sent to DWER. The trial will include monthly shipments, with an average of 34,000 tonnes per ship (with a maximum of 65,000 tonnes per ship). The Trial will continue for up to 12 months and will include the export of up to 500,000 dry metric tonnes of Spodumene.

Based on SP loading controls, monitoring commitments and product quality as detailed in Attachment 1, the potential risk to both human health and ecosystem as a consequence of the proposed Trial is considered low. The proposed handling strategy has been determined based on the hazards identified in the product quality testing. Further, SP’s current monitoring program, as required under our existing licence will support this Trial. Both SP and MRL are committed to continual improvement and the Trial outcomes will be assessed and reported, with a view to subsequent licence amendment application.

All four Spodumene products proposed for the Trial are compliant with the criteria listed under Condition 5 of Environmental Licence L5099/1974/14, summary below.

SOUTHERN PORTS ALBANY BUNBURY ESPERANCE

ALBANY BUN BURY ESPERANCE PERTH PO Box 175 PO Box 4 PO Box 35 PO Box 1049

Albany, WA 6331 Sunbury, WA 6231 Esperance, WA 6450 West Perth, WA 6872

T: +61 8 9892 9000 T: +61 8 9729 6500 T: +61 8 9072 3333 T: +61 8 9235 8000

E: [email protected] ABN: 30 044 341 250

Condition 5 of Environmental Licence L5099/197 4/14

(a) Contain asbestos in concentrations equal to or greater less than less than than 0.01% w/w for non-friable 0.002 %

0.001 % 0.001 %

0.001 % asbestos or 0.01 % w/w for fibrous asbestos;

(b) Contain respirable silica equal 0.179 wt% 0.001 wt% 0.055 wt% 0.002 wt% to or greater than 1 % w/w;

(c) Exceed the radiation transport limit of 10 Bqlg for Uranium-238 0.04 Bq/g 0.05 Bq/g and Thorium232 combined;

(d) Exceed Rubidium-87 0.59 Bq/g 1.23 Bq/g

concentrations of 30 Bqlg; or

(e) Are a waste or waste-derived by No No· No No

product (except Clean fill).

In support of this Notification and for your information, please find additional information in Attachment 1 (Trial Notification Matrix) and the associated NATA accredited laboratory testing and consultant reports in the remaining Attachments.

We look forward to your response, and should you require further information, please don't hesitate to contact Alex Leonard (SP Environmental Manager) on 9072 3388 or 0429 073 546.

Sincerely,

Alan Byers Interim Chief Executive Officer Southern Ports Albany - Sunbury - Esperance

Cc: Danielle Eyre (DWER), Kim Dennison (MRL), David Swain (MRL)

ALBANY PO Box 175

SUNBURY PO Box 4

ESPERANCE PO Box 35

PERTH PO Box 1049

Albany, WA 6331 Sunbury, WA 6231 Esperance, WA 6450 West Perth, WA 6872 T: +61 8 9892 9000 T: +61 8 9729 6500 T: +61 8 9072 3333 T: +61 8 9235 8000

E: [email protected] ABN : 30 044 341 250

ATTACHMENTS INDEX Attachment 1 - DWER Trial Notification Matrix

Attachment 2 - Dust Extinction Moisture (DEM) for the 6% fine product

Attachment 3 - Dust Extinction Moisture (DEM) for the 6% coarse product

Attachment 4 - Dust Extinction Moisture (DEM) for the 6% 50-50 product


Attachment 6 - XRD Mineral Analysis (including Muscovite) for the 6% fine product

Attachment 7 - XRD Mineral Analysis (including Muscovite) for the 6% coarse

product

Attachment 8 - XRD Mineral Analysis (including Muscovite) for the 6% 50-50

product


product

Attachment 10 – Respirable XRD minerals (including respirable silica) for the 6%

fine product

Attachment 11 - Respirable XRD minerals (including respirable silica) for the 6%

coarse product


50-50 product


coarse product

Attachment 14 - Asbestos content (%) for the 6% fine product

Attachment 15 - Asbestos content (%) for the 6% coarse product

Attachment 16 - Asbestos content (%) for the 6% 50-50 product


Attachment 18 - ICP Analysis for Radiation Calculation (4% product = ST3 and 6%

product = ST2)

Attachment 19 – Concentrations of radionuclides in products of the Mt Marion site

(Calytrix Consulting Pty Ltd)

Attachment 20 - Metals DI Leachate Concentration for the 6% fines (A-2), 6%

coarse (A-1) and 4% coarse (A-3) products

ALBANY PO Box 175

BUN BURY PO Box 4

Albany, WA 6331 Sunbury, WA 6231

T: +61 89892 9000 T: +6189729 6500

E: [email protected]

ESPERANCE PO Box 35

Esperance, WA 6450

T: +61 8 9072 3333

ABN : 30 044 341 250

PERTH PO Box 1049

West Perth, WA 6872

T: +61 8 9235 8000

Attachment 1 – DWER Trial Notification Matrix

SOUTHERN PORTS ALBANY BUNBURY ESPERANCE

Min

imum

Tria

l not

ifica

tion

info

rmat

ion

to b

e pr

ovid

ed to

DW

ER(DRA

FTforfinalstakeholdercom

ment)

Trialshipm

entn

otificatio

n:Summaryof

Health

andEn

vironm

entalrisks

associated

bulkload

ingof

four

spod

umen

eprod

uctsthroughthePo

rtof

Espe

rance

Des

crip

tion

of p

ropo

sed

Tria

lM

t Mar

ion

Lith

ium

Pro

ject

cur

rent

ly p

rodu

ces

the

follo

win

g Sp

odum

ene

expo

rt bu

lk p

rodu

cts,

col

lect

ivel

y th

ese

will

be re

ferre

d to

as

the

“pro

duct

s” th

roug

hout

this

Not

ifica

tion.

6% L

ithiu

m S

podu

men

e C

oars

e Pr

oduc

ts (“

6% c

oars

e”)

6%

Lith

ium

Fin

e (“6

% fi

ne”)

6%

Lith

ium

50:

50 C

oars

e:Fi

ne (

“6%

50:

50”)

4%

Lith

ium

Coa

rse

(“4%

coa

rse”

)

All f

our p

rodu

cts

are

sour

ced

from

the

sam

e m

ine

area

s at

Mt M

ario

n an

d ar

e ph

ysic

ally

and

che

mic

ally

trea

ted

in th

e sa

me

faci

litie

s ho

wev

er re

mov

ed fr

om th

e pr

oces

s at

di

ffere

nt s

tage

s. T

he p

rodu

cts

have

bee

n ph

ysic

ally

pro

cess

ed to

redu

ce th

e pa

rticl

e si

ze th

roug

h a

crus

hing

pla

nt. T

he p

rodu

cts

are

then

trea

ted

thro

ugh

a m

ulti

stag

e w

et

bene

ficia

tion

proc

ess

to re

mov

e un

wan

ted

com

pone

nts.

Prod

ucts

will

be lo

aded

into

road

trai

ns d

irect

ly fr

om th

e be

nefic

iatio

n pl

ant s

tock

pile

by

a w

heel

load

er. R

oad

train

s w

ill tra

nspo

rt th

e pr

oduc

t to

the

Port

of E

sper

ance

util

isin

g th

e C

oolg

ardi

e-Es

pera

nce

Hig

hway

(app

roxi

mat

ely

a 4

hour

s tra

nspo

rt tim

e). T

he p

rodu

ct w

ill be

unl

oade

d in

to S

hed

4 af

ter a

con

cret

e flo

or h

as b

een

laid

to p

rovi

de a

sea

led

floor

and

pre

vent

con

tam

inat

ion.

Fro

nt e

nd lo

ader

s w

ill ou

tload

into

the

shed

hop

pers

into

the

encl

osed

circ

uit t

o th

e Be

rth 3

shi

ploa

der.

The

Tria

l will

com

men

ce 3

0 da

ys fr

om th

e da

te a

nd ti

me

that

this

not

ifica

tion

is s

ent t

o D

WER

with

the

first

shi

pmen

t due

in J

anua

ry 2

019.

The

Tria

l will

be o

ngoi

ng o

ver t

he n

ext

12 m

onth

s w

ith a

tota

l of 5

00,0

00 d

ry m

etric

tonn

es e

xpec

ted

to b

e ex

porte

d ov

er th

is p

erio

d. S

hipm

ents

are

exp

ecte

d ev

ery

27-2

8 da

ys w

ith s

ome

mon

ths

rece

ivin

g tw

o sh

ips.

Sh

ipm

ents

will

aver

age

34,0

00 to

nnes

but

can

reac

h at

a m

axim

um 6

5,00

0 to

nnes

. Tria

l and

mon

itorin

g re

sults

will

be u

tilis

ed to

sup

port

a fo

rmal

Lic

ence

Am

endm

ent.

Hum

an h

ealth

haz

ards

ass

ocia

ted

with

th

e Tr

ial m

ater

ial

Non

e of

the

prod

ucts

pre

sent

sig

nific

ant h

uman

hea

lth h

azar

ds a

nd a

re a

ll su

itabl

e fo

r ass

essm

ent b

y th

e “S

elf-a

sses

smen

t dec

isio

n-m

akin

g flo

w c

hart”

for t

rial s

hipm

ent

notif

icat

ion

sinc

e al

l pro

duct

s:Ar

e no

t a w

aste

or a

was

te-d

eriv

ed p

rodu

ct;

Hav

e re

spira

ble

silic

a <1

% (A

ttach

men

ts 1

0 to

13)

;As

best

os fi

bres

are

<0.

01%

(Atta

chm

ents

14

to 1

7); a

nd

Rad

ioac

tivity

is <

10 B

q/g

(U23

8/Th

232)

and

<30

Bq/

g (R

b87)

(Atta

chm

ent 1

8 an

d 19

).

Envi

ronm

enta

l haz

ards

ass

ocia

ted

with

the

Tria

l mat

eria

l Al

l fou

r pro

duct

s pr

esen

t min

imal

env

ironm

enta

l haz

ards

sin

ce:

Al

l fou

r pro

duct

s do

not

pos

e an

y si

gnifi

cant

bio

avai

labi

lity

risks

to th

e m

arin

e en

viro

nmen

t bas

ed o

n th

e de

ioni

sed

wat

er le

acha

te re

sults

for m

etal

s (A

ttach

men

t 20)

. The

re

sults

wer

e co

mpa

red

to th

e fo

llow

ing

risk

crite

ria:

AN

ZEC

C-A

RM

CAN

Z (2

000)

trig

ger v

alue

s fo

r mar

ine

wat

er fo

r all

four

pro

duct

s in

dica

ting

risks

are

acc

epta

ble

to th

e su

rroun

ding

mar

ine

envi

ronm

ent.

The

stor

mw

ater

dis

char

ge p

oint

s in

to th

e be

rth p

ocke

ts o

f the

inne

r har

bour

con

stitu

te a

hig

hly

mod

ified

env

ironm

ent (

90%

Lev

el o

f pro

tect

ion

Appl

icab

le) a

nd in

itial

di

lutio

n of

at l

east

ten

fold

is c

onsi

dere

d.

Not

e th

at th

ere

is n

o pa

thw

ay o

f lea

chat

es to

drin

king

wat

er a

s th

e ha

ndlin

g ar

eas

are

seal

ed a

nd th

e un

derly

ing

aqui

fer i

s br

acki

sh a

nd n

ot u

sed

for h

uman

co

nsum

ptio

n (a

nd in

any

cas

e flo

ws

seaw

ard)

.

All f

our p

rodu

cts

will

be w

et s

epar

ated

at t

he m

ine

and

will

arriv

e at

the

Port

stor

age

shed

abo

ve th

eir D

EM (A

ttach

men

ts 2

to 5

) and

moi

stur

e w

ill be

mai

ntai

ned

abov

e th

e D

EM p

rior t

o lo

adin

g;

All f

our p

rodu

cts

have

mic

a (m

usco

vite

) <5%

(Atta

chm

ents

6 to

9) a

nd th

ese

leve

ls w

ill be

kep

t at <

5%.

Th

ree

prod

ucts

had

less

than

3%

of t

heir

parti

cula

tes

<10

μm (A

ttach

men

ts 1

0 to

13)

, but

one

pro

duct

the

6% fi

nes

had

4.8%

of i

ts p

artic

ulat

es le

ss th

an 1

0 μm

(A

ttach

men

t 10)

;

The

prod

uct i

s od

ourle

ss; a

nd

Th

e op

erat

ions

will

pres

ent n

o m

ore

nois

e th

an th

e us

ual o

pera

tions

that

incl

ude

truck

mov

emen

ts to

She

d 5

(nex

t to

shed

4) a

nd th

e op

erat

ion

of ir

on o

re c

ircui

t.

Key

hum

an h

ealth

and

env

ironm

enta

l ris

ks a

ssoc

iate

d w

ith h

andl

ing

the

tria

l m

ater

ial

N

o re

leva

nt e

nviro

nmen

tal r

isk

crite

ria a

pplic

able

for a

irbor

ne li

thiu

m o

r lith

ium

con

cent

ratio

ns in

fres

h or

mar

ine

wat

ers.

Min

imum

Tria

l not

ifica

tion

info

rmat

ion

to b

e pr

ovid

ed to

DW

ER(DRA

FTforfinalstakeholdercom

ment)

Des

crip

tion

of a

ll se

nsiti

ve re

cept

ors,

in

clud

ing

loca

tion

and

dist

ance

from

so

urce

of h

azar

d

Unl

oadi

ng o

f the

spo

dum

ene

in S

hed

4 co

nstit

utes

the

pres

crib

ed a

ctiv

ity c

lose

st to

the

resi

dent

ial r

ecep

tors

and

this

is >

500m

from

the

near

est r

esid

entia

l rec

epto

r at p

rem

ises

no

t ow

ned

by th

e Po

rt. S

hed

4 is

not

like

ly to

con

stitu

te a

ny s

igni

fican

t em

issi

ons

as a

ny u

nloa

ding

or l

oadi

ng o

f pro

duct

in th

e sh

ed w

ill be

con

duct

ed u

nder

fully

enc

lose

d co

nditi

ons.

Not

e th

at:

The

DW

ER N

oise

Bra

nch

excl

udes

pre

mis

es fr

om th

eir a

sses

smen

ts if

they

are

ow

ned

by th

e Po

rt. N

oise

is th

e ke

y em

issi

on a

ffect

ing

resi

dent

s.D

ust r

isks

hav

e sh

own

to b

e ac

cept

able

from

PM

10 m

onito

ring

on th

e Po

rts b

ound

ary

in d

ata

repo

rted

to D

WER

;Th

e Be

rth 3

shi

ploa

der i

s th

e on

ly li

kely

sou

rce

of d

ust a

nd is

loca

ted

over

700

m fr

om a

ny re

side

ntia

l rec

epto

r inc

ludi

ng th

ose

owne

d by

the

Port.

Des

crip

tion

of re

cept

or p

athw

ays

St

orm

wat

er ru

n-of

f fro

m s

eale

d su

rface

s on

Ber

th 3

cou

ld m

obilis

e du

st to

the

mar

ine

envi

ronm

ent.

How

ever

, the

are

a dr

ains

land

war

d to

an

unde

rgro

und

sum

p th

at w

ill be

insp

ecte

d on

a m

onth

ly b

asis

and

em

ptie

d of

sol

ids

as re

quire

d.

N

o di

scha

rge

to g

roun

dwat

er a

s al

l han

dlin

g su

rface

s ar

e se

aled

;

Mai

n du

st s

ourc

e is

from

the

berth

3 s

hipl

oade

r and

win

d co

uld

carry

dus

t to

the

mar

ine

envi

ronm

ent o

r the

resi

dent

ial r

ecep

tors

. The

se e

mis

sion

s w

ill be

acc

epta

ble

and

belo

w re

leva

nt c

riter

ia b

ased

on

prod

uct q

ualit

y an

d lo

adin

g co

ntro

ls.

Des

crip

tion

of a

ppro

pria

te h

andl

ing

met

hods

and

con

trol

s on

haz

ard

sour

ce fo

r miti

gatin

g (a

nd/o

r m

inim

isin

g) ri

sks

to re

cept

ors

– as

de

term

ined

by

self-

asse

ssm

ent

fram

ewor

k pr

ovid

ed b

y D

WER

Usi

ng th

e “S

elf-a

sses

smen

t dec

isio

n-m

akin

g flo

w c

hart”

for t

rial s

hipm

ent n

otifi

catio

n:

Th

ree

of th

e fo

ur p

rodu

cts:

6%

coa

rse

prod

uct;

6% 5

0-50

pro

duct

and

the

4% c

oars

e pr

oduc

t are

all

cons

ider

ed to

be

suita

ble

for h

andl

ing

met

hod

num

ber 1

;

The

6% fi

ne p

rodu

ct is

sui

tabl

e fo

r han

dlin

g m

etho

d nu

mbe

r 2.

The

risks

of t

he tr

ial a

re n

eglig

ible

sin

ce th

e pr

opos

ed lo

adin

g re

pres

ents

han

dlin

g m

etho

d nu

mbe

r 3, w

ell i

n ex

cess

of t

he m

inim

um lo

adin

g re

quire

men

ts fo

r the

se p

rodu

cts.

Th

e lo

adin

g co

ntro

ls fo

r sto

rage

and

load

ing

faci

litie

s in

clud

e:

An

enc

lose

d sh

ed a

nd a

n en

clos

ed c

onve

yor c

ircui

t;

A sh

iplo

ader

that

can

be

low

ered

into

the

hold

with

mis

ting

spra

ys o

n th

e en

d of

the

load

er;

As

per

lice

nce

cond

ition

22,

the

moi

stur

e of

the

spod

umen

e to

be

kept

abo

ve th

e D

EM b

efor

e an

d du

ring

ship

load

ing;

and

As p

er c

ondi

tion

24 o

f lic

ence

for i

ron

ore,

if d

ust i

s vi

sibl

y es

capi

ng th

e ho

ld, m

istin

g sp

rays

on

ship

load

er to

be

oper

ated

.

Des

crip

tion

of p

ropo

sed

mon

itorin

g fo

r Tria

l per

iod

Mon

itorin

g to

be

cond

ucte

d as

per

exi

stin

g lic

ence

con

ditio

ns:

C

ondi

tion

21: T

able

4 fo

r ong

oing

spo

dum

ene

prod

uct q

ualit

y;

C

ondi

tion

22 a

nd 2

3: M

onito

ring

as re

quire

d to

ens

ure

moi

stur

e of

the

spod

umen

e st

ockp

ile to

be

kept

abo

ve th

e D

EM b

efor

e an

d du

ring

ship

load

ing;

Con

ditio

n 26

: Bou

ndar

y PM

10 d

ust m

onito

ring

for L

ithiu

m a

t site

s 1-

5;

C

ondi

tion

27: E

nsur

e an

y re

porta

ble

even

t for

PM

10 is

repo

rted

as re

quire

d;

C

ondi

tion

32: R

elat

ing

to m

onito

ring

of li

thiu

m in

sto

rmw

ater

and

was

hwat

ers;

and

Con

ditio

n 33

: Rel

atin

g to

met

eoro

logi

cal m

onito

ring.

Rep

ortin

g of

the

abov

e tri

al m

onito

ring

resu

lts w

ill oc

cur a

s re

quire

d by

Con

ditio

n 6

and

incl

ude

any

inci

dent

s/co

mpl

aint

s or

non

-mat

eria

l pro

cedu

ral c

hang

es. F

ive

repo

rts w

ill be

su

bmitt

ed o

ver t

he 1

2 m

onth

per

iod,

the

first

repo

rt be

ing

due

30 d

ays

afte

r the

firs

t shi

pmen

t, th

e re

mai

ning

to b

e pr

ovid

ed a

t 4, 7

, 10

and

the

end

of th

e tri

al p

erio

d.

An a

pplic

atio

n fo

r a fo

rmal

lice

nce

amen

dmen

t will

be s

ubm

itted

at l

east

thre

e m

onth

s be

fore

the

cess

atio

n of

the

trial

per

iod.

Des

crip

tion

of p

ropo

sed

cont

inge

ncy

mea

sure

s/m

anag

emen

t act

ions

in th

e ev

ent o

f une

xpec

ted

/ unp

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ed

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dent

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l

In th

e un

likel

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ent t

hat d

ust i

s an

issu

e, d

ust m

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t trig

gers

use

d fo

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n or

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Ber

th 3

will

also

app

ly to

spo

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ene:

If

visi

ble

dust

is o

bser

ved

esca

ping

the

hatc

h du

st m

itiga

tion

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sure

s w

ill be

impl

emen

ted

incl

udin

g ac

tivat

ing

the

mis

ting

spra

ys o

n th

e sh

iplo

ader

; and

Load

ing

will

be s

hut d

own

if du

st is

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ible

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the

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h.

In th

e un

likel

y ev

ent t

hat n

oise

is id

entif

ied

as a

n is

sue

by th

e re

al ti

me

nois

e lo

gger

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com

plai

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are

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ived

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ulat

ion

17 A

ppro

val w

ill ap

ply

requ

iring

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rting

, inv

estig

atio

n an

d re

med

ial a

ctio

n.

Attachment 2 - Dust Extinction Moisture (DEM) for the 6% fine product

Jenike & Johanson Pty Ltd | 12 Fisher Street | Belmont WA 6104 Australia Tel +61 8 9277 3303 | ABN 20 153 040 807 | www.jenike.com

. . . . . . _-;-~ JENIKE® •.~&;-. . :: •: & J O H A N S O N ••~ ;~ •• · •· •• --, . SCIENCE ENGINEERING DESIGN · . .-•• ;...;-:.•.r~ .......... . . . . .. .

Jenike & Johanson Pty Ltd | 12 Fisher Street | Belmont WA 6104 Australia Tel +61 8 9277 3303 | ABN 20 153 040 807 | www.jenike.com

Dust Extinction Moisture Test Results

on MM SC6 20180904

Nagrom the Mineral Processor

Report No: 71193-2

11 October 2018 ©2018

Table of contents:

. . . . . . _-;-~ JENIKE® •.~&;-. . :: •: & J O H A N S O N ••~ ;~ •• · •· •• --, . SCIENCE ENGINEERING DESIGN · . .-•• ;...;-:.•.r~ .......... . . . . .. .

0.1% 1% 10% 100%Moisture

0.1

1

10

100

1000

10000

Dus

t Num

ber

MM SC6 20180904 Logarithmic

MM SC6 20180904 DEM (4.36%)

14 November 2018

Rain Lewis Metallurgical Surpervisor Nagrom the Mineral Processor 49 Owen Road, Kelmscott WA 6111 E: [email protected] D: +61 8 9399 3934

Delivered by email: [email protected]

RE: Dust Extinction Moisture test results on Spodumene MM SC4 and MM SC6

Dear Rain: Our report follows, providing dust extinction moisture test results for the Spodumene MM SC4 and MM SC6 materials received. This report completes the work we have been contracted for as provided in your PO NAG05996.

Please feel free to contact me should you have any questions.

Kind regards,

Dewi Octavia Project Engineer Perth, Western Australia [email protected]

cc: John W. Carson, Ph.D., President, Tyngsboro, Massachusetts; [email protected]

. . . . . • • ®

-.~r, . .Ji) ~~~R~~ , .-::-.-.•.-~;~::.•i • SC IE NC E ENGINEERING DES I G N

·-:~: ... •.· ........ . .

Jenike & Johanson Pty Ltd I 12 Fisher St I Belmont WA 6104 Australia I T:+61892773303 I ABN 20 153 040 807 [email protected] I jenike.com

Dust Extinction Moisture Test Results on Spodumene MM SC4 and MM SC6

Nagrom

Report No: 71193-3

14 November 2018 ©2018

Report author Dewi Octavia, Project Engineer, Perth, Western Australia; [email protected] Report reviewer Corin P. Holmes MSc Eng, Operations Manager Australia, Perth, Western Australia; [email protected] We value your feedback. Please send your comments to [email protected]

Table of contents:

1 INTRODUCTION .......................................................................................................... 3 2 FLOW PROPERTIES TEST RESULTS ......................................................................... 3 3 TEST REPORT TABLES, PLOTS, AND APPENDIX ................................................... 4

. . . . . • • ®

-.~r, . .Ji) ~~~R~~ · .-::-.-.•.-~;~::.•i • SC IE NC E ENGINEERING DES I G N

·-:~: ... •.· ........ . .


71193-3 3

1 INTRODUCTION Nagrom has contracted Jenike & Johanson Pty Ltd (J&J) to perform dust extinction moisture (DEM) tests on Spodumene MM SC4 and MM SC6 materials. The DEM content is that at which a material is deemed to emit no dust as determined based on Australian Standard AS 4156.6-2000. The following provides the results of the test work.

2 FLOW PROPERTIES TEST RESULTS Two spodumene samples labelled MM SC4 and MM SC6 were received for DEM testing. The as received moisture content, maximum moisture content1 before free draining occurs, and particle size distribution were determined for each material. The test results are summarized in the table below. Photos of the samples can be found in the Appendix section.

Table 1: Summary of Spodumene MM SC4 and MM SC6 test results

MM SC4

Weight of sample provided 23.5 kg As received moisture 2.7%

Maximum moisture content (before free draining occurs)

17.6%

DEM 1.3% Weight percentage greater than

6.3mm 0.1%

MM SC6



7.5%


6.3mm 0.1%

Particle size analysis A particle size distribution (PSD) was determined for both spodumene materials, using a dry sieving method (Ro-Tap, with tapping, 5 minutes total time). The materials were air dried prior to sieving. Plots showing the PSD are provided in the Appendix section. The calculated P10, P50, and P90 sizes2 are given in the following table.

Table 2: Particle size distribution test results summary

Material P10 [mm] P50 [mm] P90 [mm] MM SC4 0.49 1.27 4.40 MM SC6 0.9 2.41 5.16

1 Moisture values were determined by drying small samples at 107°C in a forced convection oven, until no change in moisture content is observed. The loss in weight of each sample, divided by its original weight before drying, is denoted as the moisture.

2 The terms P10, P50, and P90 refer to the particle sizes at which 10%, 50%, and 90% of the sample is smaller, respectively. The value for P50 is also referred to as the mass median diameter.

71193-3 4

Dust Extinction Moisture Test A dust extinction moisture (DEM) test was performed for each of the spodumene materials, MM SC4 and MM SC6, to investigate the effects of moisture content on dust generation. The results of the test indicate that the MM SC4 and MM SC6 materials have a DEM value of 1.3% and 1.0%, respectively. Full results of the test work are provided in the Appendix.

The table below provides a detailed summary of data generated during the course of the test work.

Table 3: DEM results, MM SC4

Moisture Tested

[%]

Sample pre-weight

[g]

Filter bag weight

[g]

Filter bag + dust post-weight

[g]

Dust number DEM

0.2 2500 37.625 46.450 353

1.3%

0.4 2500 40.305 45.527 209 0.8 2500 39.492 39.668 7 1.3 2500 38.593 38.636 2 1.4 2500 37.550 37.678 5 2.5 2500 38.638 38.683 2


Moisture Tested

[%]

Sample pre-weight

[g]

Filter bag weight

[g]


[g]

Dust number DEM

0.2 2500 38.307 43.343 201

1.0%

0.4 2500 38.956 42.624 147 0.6 2500 36.964 39.924 118 0.8 2500 37.816 37.966 6 1.3 2500 38.069 38.109 2 1.4 2500 37.900 38.002 4

3 TEST REPORT TABLES, PLOTS, AND APPENDIX

Detailed tables and plots of the test results are shown in the pages that follow.

3

2

1

0

9

8

7

6

5

4

3

2

1

0

,, ·--;~JENIKE ·. :., .· ·• . ..... ··;·.-;-;;•·;l. ·:~~-· & J O H A N S O N

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Sieve name Size Retained %8 mm 0.00

6.3 mm 0.113.35 mm 15.391.7 mm 19.06850 μm 30.62425 μm 29.58212 μm 4.49150 μm 0.25

0 μm 0.49100.0099.96833.2 gm

Particle Sizep10 493 μmp20 637 μmp50 1.27 mmp80 2.96 mmp90 4.404 mm

0.1 1 10 100Particle Size (mm)

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%Cumulative Passing

Retained

- - -/- ---13-

-

/ I

I I

I I_

I I

,( - 1

0% 0.5% 1% 1.5% 2% 2.5% 3%Moisture

0.1

1

10

100

1000

Dus

t Num

ber

MM SC4 Exponential

MM SC4 DEM (1.27%)* -13-

G

G

' ~

~ ~ .

G ~ G

~ G G

~ ~'

14

13

12

1 1

9

8

6

5

4

3

2

1

0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


6.3 mm 0.143.35 mm 25.601.7 mm 42.68850 μm 25.43425 μm 5.54212 μm 0.34150 μm 0.08

0 μm 0.18100.0099.98

1.03 kg

Particle Sizep10 979 μmp20 1.31 mmp50 2.41 mmp80 4.012 mmp90 5.164 mm


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%


Retained

- - -1- ---13-

-

I I

I I

I I

I I

I I

I tf

~ - 1 - -

0.1% 0.2% 0.3% 0.4% 0.5% 0.6% 0.7% 0.8% 0.9% 1% 1.1% 1.2% 1.3% 1.4% 1.5%Moisture

1

10

100

1000

Dus

t Num

ber

MM SC6 Exponential

MM SC6 DEM (0.98%)* -13-

~~ 0

~ 0

~ ~ ~ ~ ~

~ . '

~ El

~ ~

0

~ 0 ~

p10 p50 p90

Attachment 4 - Dust Extinction Moisture (DEM) for the 6% 50-50 product

25 September 2018



RE: Dust Extinction Moisture test results on MM Sc6 Enviro Comp

Dear Rain: Our report follows, providing dust extinction moisture test results for the MM Sc6 Enviro Comp spodumene material received. This report completes the work we have been contracted for as provided in your PO NAG05996.


Kind regards,

Corin Holmes Operations Manager Australia Perth, Western Australia [email protected]


Jenike & Johanson Pty Ltd I 8/1 Longfellow Court I Belmont WA 6104 Australia I Tel +61 8 9277 3303 I ABN 20 153 040 807 [email protected] I www.jenike.com

Dust Extinction Moisture Test Results

on MM Sc6 Enviro Comp

Nagrom the Mineral Processor

Report No: 71193-1 Revision 1

25 September 2018 ©2018

Report author Dewi Octavia, Project Engineer, Perth, Western Australia; [email protected]

Report reviewerCorin P. Holmes MSc Eng, Operations Manager Australia, Perth, Western Australia; [email protected]

Document Control

Date Revision details 25/9/2018 Report 71193-1 - Initial release 25/9/2018 Report 71193-1 Revision 1 – Updated sample name

We value your feedback. Please send your comments to [email protected]

Table of contents:

1 INTRODUCTION .......................................................................................................... 3 2 FLOW PROPERTIES TEST RESULTS ......................................................................... 3

. . . .. .

. C!J.) .~l~N~~~~~--.. ~::=t:$.• •• . . . . .. . . . .

Jenike & Johanson Pty Ltd I 8/1 Longfel low Court I Belmont WA 6104 Austra lia I Tel +61 8 9277 3303 I ABN 20 153 040 807 [email protected]

71193-1 Rev 1 3

1 INTRODUCTION Nagrom is interested in understanding the dusting behavior of MM Sc6 Enviro Comp. As such, they contracted Jenike & Johanson Pty Ltd (J&J) to determine the dust extinction moisture (DEM) content of the material. The DEM content is that at which a material is deemed to emit no dust as determined based on Australian Standard AS 4156.6-2000. The following provides the results of the test work.

2 FLOW PROPERTIES TEST RESULTS A spodumene sample labelled MM Sc6 Enviro Comp was received for DEM. The as received moisture content1 was determined, and the test results are summarized in the table below.

Table 1: Summary of MM Sc6 Enviro Comp results As received moisture 11.7%

DEM % 3.3%

Dust Extinction Moisture Test

A dust extinction moisture (DEM) test was performed for the spodumene material to investigate the effects of moisture content on dust generation. The results of the test indicate that the material has a DEM value of 3.3%. Full results of the test work are provided in the Appendix.

1 Moisture values were determined by drying small samples at 107°C in a forced convection oven, until no

change in moisture content is observed. The loss in weight of each sample, divided by its original weight before drying, is denoted as the moisture.

71193-1 Rev 1 4

APPENDIX

15

14

13

12

11

10

9

8

7

6

4

3

2

0

0 1 2 3 4 5 8 9 10 11 --=-1-~3 14 r-----_ --~-------=-==-- -w=---"""""""'---~ -6 7

0.1% 1% 10% 100%Moisture

0.1

1

10

100

1000

10000

Dus

t Num

ber

MM Sc6 Enviro Comp Logarithmic

MM Sc6 Enviro Comp DEM (3.27%)* --e-

14 November 2018



RE: Dust Extinction Moisture test results on Spodumene MM SC4 and MM SC6

Dear Rain: Our report follows, providing dust extinction moisture test results for the Spodumene MM SC4 and MM SC6 materials received. This report completes the work we have been contracted for as provided in your PO NAG05996.


Kind regards,

Dewi Octavia Project Engineer Perth, Western Australia [email protected]


. . . . . • • ®

-.~r, . .Ji) ~~~R~~ , .-::-.-.•.-~;~::.•i • SC IE NC E ENGINEERING DES I G N

·-:~: ... •.· ........ . .


Dust Extinction Moisture Test Results on Spodumene MM SC4 and MM SC6

Nagrom

Report No: 71193-3

14 November 2018 ©2018

Report author Dewi Octavia, Project Engineer, Perth, Western Australia; [email protected] Report reviewer Corin P. Holmes MSc Eng, Operations Manager Australia, Perth, Western Australia; [email protected] We value your feedback. Please send your comments to [email protected]

Table of contents:

1 INTRODUCTION .......................................................................................................... 3 2 FLOW PROPERTIES TEST RESULTS ......................................................................... 3 3 TEST REPORT TABLES, PLOTS, AND APPENDIX ................................................... 4

. . . . . • • ®

-.~r, . .Ji) ~~~R~~ · .-::-.-.•.-~;~::.•i • SC IE NC E ENGINEERING DES I G N

·-:~: ... •.· ........ . .


71193-3 3

1 INTRODUCTION Nagrom has contracted Jenike & Johanson Pty Ltd (J&J) to perform dust extinction moisture (DEM) tests on Spodumene MM SC4 and MM SC6 materials. The DEM content is that at which a material is deemed to emit no dust as determined based on Australian Standard AS 4156.6-2000. The following provides the results of the test work.

2 FLOW PROPERTIES TEST RESULTS Two spodumene samples labelled MM SC4 and MM SC6 were received for DEM testing. The as received moisture content, maximum moisture content1 before free draining occurs, and particle size distribution were determined for each material. The test results are summarized in the table below. Photos of the samples can be found in the Appendix section.

Table 1: Summary of Spodumene MM SC4 and MM SC6 test results

MM SC4



17.6%


6.3mm 0.1%

MM SC6



7.5%


6.3mm 0.1%

Particle size analysis A particle size distribution (PSD) was determined for both spodumene materials, using a dry sieving method (Ro-Tap, with tapping, 5 minutes total time). The materials were air dried prior to sieving. Plots showing the PSD are provided in the Appendix section. The calculated P10, P50, and P90 sizes2 are given in the following table.

Table 2: Particle size distribution test results summary

Material P10 [mm] P50 [mm] P90 [mm] MM SC4 0.49 1.27 4.40 MM SC6 0.9 2.41 5.16

1 Moisture values were determined by drying small samples at 107°C in a forced convection oven, until no change in moisture content is observed. The loss in weight of each sample, divided by its original weight before drying, is denoted as the moisture.

2 The terms P10, P50, and P90 refer to the particle sizes at which 10%, 50%, and 90% of the sample is smaller, respectively. The value for P50 is also referred to as the mass median diameter.

71193-3 4

Dust Extinction Moisture Test A dust extinction moisture (DEM) test was performed for each of the spodumene materials, MM SC4 and MM SC6, to investigate the effects of moisture content on dust generation. The results of the test indicate that the MM SC4 and MM SC6 materials have a DEM value of 1.3% and 1.0%, respectively. Full results of the test work are provided in the Appendix.

The table below provides a detailed summary of data generated during the course of the test work.


Moisture Tested

[%]

Sample pre-weight

[g]

Filter bag weight

[g]


[g]

Dust number DEM

0.2 2500 37.625 46.450 353

1.3%

0.4 2500 40.305 45.527 209 0.8 2500 39.492 39.668 7 1.3 2500 38.593 38.636 2 1.4 2500 37.550 37.678 5 2.5 2500 38.638 38.683 2


Moisture Tested

[%]

Sample pre-weight

[g]

Filter bag weight

[g]


[g]

Dust number DEM

0.2 2500 38.307 43.343 201

1.0%

0.4 2500 38.956 42.624 147 0.6 2500 36.964 39.924 118 0.8 2500 37.816 37.966 6 1.3 2500 38.069 38.109 2 1.4 2500 37.900 38.002 4

3 TEST REPORT TABLES, PLOTS, AND APPENDIX

Detailed tables and plots of the test results are shown in the pages that follow.

3

2

1

0

9

8

7

6

5

4

3

2

1

0

,, ·--;~JENIKE ·. :., .· ·• . ..... ··;·.-;-;;•·;l. ·:~~-· & J O H A N S O N

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


6.3 mm 0.113.35 mm 15.391.7 mm 19.06850 μm 30.62425 μm 29.58212 μm 4.49150 μm 0.25

0 μm 0.49100.0099.96833.2 gm

Particle Sizep10 493 μmp20 637 μmp50 1.27 mmp80 2.96 mmp90 4.404 mm


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%


Retained

- - -/- ---13-

-

/ I

I I

I I_

I I

,( - 1

0% 0.5% 1% 1.5% 2% 2.5% 3%Moisture

0.1

1

10

100

1000

Dus

t Num

ber

MM SC4 Exponential

MM SC4 DEM (1.27%)* -13-

G

G

' ~

~ ~ .

G ~ G

~ G G

~ ~'

14

13

12

1 1

9

8

6

5

4

3

2

1

0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


6.3 mm 0.143.35 mm 25.601.7 mm 42.68850 μm 25.43425 μm 5.54212 μm 0.34150 μm 0.08

0 μm 0.18100.0099.98

1.03 kg

Particle Sizep10 979 μmp20 1.31 mmp50 2.41 mmp80 4.012 mmp90 5.164 mm


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%


Retained

- - -1- ---13-

-

I I

I I

I I

I I

I I

I tf

~ - 1 - -

0.1% 0.2% 0.3% 0.4% 0.5% 0.6% 0.7% 0.8% 0.9% 1% 1.1% 1.2% 1.3% 1.4% 1.5%Moisture

1

10

100

1000

Dus

t Num

ber

MM SC6 Exponential

MM SC6 DEM (0.98%)* -13-

~~ 0

~ 0

~ ~ ~ ~ ~

~ . '

~ El

~ ~

0

~ 0 ~

p10 p50 p90

Attachment 6 - XRD Mineral Analysis (including Muscovite) for the 6% fine product

Client:Job number:Sample:Client ID:Date:Analysis :

Sample preparation

Analysis

Summary

Mineral phase Concentration (%)ICDD match probability

Spodumene (LiAlSi2O6) 69 goodQuartz, syn (SiO2) 11 goodAlbite (Na0.986Al1.005Si2.995O8) 9 mediumMuscovite-2M1 (K(Al4Si2O9(OH)3)) 3 mediumamphibole, syn | Sodium Magnesium Silicate Hydroxide (Na1.6Mg6.2Si8O22(OH)2)

3 medium

Microcline, sodian (K0.9Na0.1AlSi3O8) 2 mediumPhlogopite-3T (KMg3(Si3Al)O10(OH)2) 1 lowLepidolite-1M (KLi1.56Al1.3Al0.51Si3.49O10F2) 1 lowClinochlore-1MIIb ((Mg,Al)6(Si,Al)4O10(OH)8) trace mediumVivianite (Fe3(PO4)2(H2O)8) trace low

Analyst: Owen Carpenter, B.Sc.(Physics)Reported: Owen Carpenter, B.Sc.(Physics)Approved: Nimue Pendragon, B.Sc.(Nanotechnology)

Be Confident We See More Page 1 of 1 Version 3.1 www.microanalysis.com.au

Only crystalline material present in the sample will give peaks in the XRD scan. Amorphous (non crystalline) material will add to the background. The search match software used was Eva 4.3. An up-to-date ICDD card set was used. The X-ray source was cobalt radiation.

The phases are listed in order of interpreted concentration:

The ICDD match probability is reported as an indication as to how well the peak positions and relative intensities for the sample matched those in the published literature (www.icdd.org) for that particular compound.

No standards were used in the quantification process. The concentrations were calculated using the peak area integration method where the area of the 100% peak for each mineral phase is summed and the relative percentages of each phase calculated based on the relative contribution to the sum. This method allows for some attention to be paid to preferred orientation but is limited in considering substitution and lattice strain.

18_1874NAGROM

The sample was supplied by the client to Microanalysis Australia on 5th November 2018 for the above mentioned analyses. A representative sub –sample was removed and lightly ground such that 90% was passing 20 μm. Grinding to this size helps eliminate preferred orientation.

12/11/2018MM SC6 Fines18_1874_02

Semi-quantitative XRD analysis

37 Kensington Street East Perth WA 6004

1/)

c ::, 0 0

0 0 0 0 ,_

0 0 0 g

0 0

~

microanalysis australia

10 20 30 40

I _ _ .raw ct1on oo can np a I PDF 00-046-1045 SiO2 Quartz, syn I PDF 00-033-0786 LiAISi2O6 Spodumene I PDF 01-072-8434 Na0.986Al1 .005Si2.995O8 AIMe I PDF 04-011-0525 K0.9Na0.1AISi3O8 Microcline, sodian I PDF 00-012-0242 (Mg,Al)6(Si,Al)4O10(OH)8 Clinochlore- 1Mllb I PDF 01-070-3754 K(Al4Si2O9(OH)3) Muscovlte-2M1 I PDF 04-01~4170 Na1.6Mg6.2Si8O22(OH)2 amphibole, syn I Sodium Magnesium Silicate Hydroxide I PDF 01-085-0911 KU1 .56Al 1.3AI0.51Si3.49O10F2 Lepidollte-1M I PDF 01-078-3947 (Cs 10.37Na2.16)((A1 13. 44Si34.56)096)(H2O)5.63 Polluclte

PDF 00-010-0492 KMg3(Si3Al)O10(OH)2 Phlogoplte-3T PDF 01-080-9696 Fe3 PO4 2 H2O 8 Vivianlte

L .. 50 60 70

i •- • ,J ,I

80

2Theta (Coupled TwoTheta/Theta) WL=1 .78901


product


Sample preparation

Analysis

Summary


Spodumene (LiAlSi2O6) 78 goodQuartz, syn (SiO2) 7 goodAlbite (Na0.986Al1.005Si2.995O8) 6 mediumMuscovite-2M1 (K(Al4Si2O9(OH)3)) 4 mediumamphibole group, syn | Sodium Calcium Magnesium Aluminum Scandium Silicon Oxide Fluoride (Na1.97Ca0.98Mg4.14Sc0.86Al0.79Si7.21O22F2)

2 medium

Microcline, ordered (KAlSi3O8) 2 mediumLepidolite-1M (KLi1.56Al1.3Al0.51Si3.49O10F2) 2 lowPollucite ((Cs10.37Na2.16)((Al13.44Si34.56)O96)(H2O)5.63)

trace medium

Clinochlore-1MIIb ((Mg,Al)6(Si,Al)4O10(OH)8) trace medium



NAGROM


12/11/2018MM SC6 Coarse18_1874_01






18_1874


II)

c :::, 0 ()

0 0

g


PDF 00-012-0242 (Mg,Al)6(Si,Al)4O 10( H)8 Clinochlore-1Mllb PDF 01-070-3754 K(Al4Si2O9(OH)3) M scovrte-2M1 PDF 04-015-3129 Na1 .97Ca0.98Mg4.1 c0.86AI0.79Si7.21O22F2 amphibole group, syn I Sodium Calcium Magnesium Aluminum Scandium Silicon Oxide Fluoride PDF 00-019-0926 KAISi3O8 Microcl e, rdered PDF 01-08~0911 KLl1 .56Al1.3AI0 Si 49O10F2 Lepidolrte-1M PDF 01-076-3947 Cs 10.37Na2.16 Al1 .44S134.56 096 H2O 5.63 Pollucrte

10 20 30 40 50 60 70 80


Attachment 8 - XRD Mineral Analysis (including Muscovite) for the 6% 50-50

product


Sample preparation

Analysis

Summary


Spodumene (LiAlSi2O6) 75 goodQuartz, syn (SiO2) 8 goodAlbite (Na0.986Al1.005Si2.995O8) 7 mediumMuscovite-2M1 (K(Al4Si2O9(OH)3)) 3 mediumMicrocline, ordered (KAlSi3O8) 2 mediumamphibole, syn | Sodium Magnesium Silicate Hydroxide (Na0.8Mg3.1Si4O11(OH))

2 medium

Lepidolite-1M (Li2KAl(Al0.13Si3.87O10)FOH) 1 lowPhlogopite-3T (KMg3(Si3Al)O10(OH)2) 1 lowPollucite ((Cs10.37Na2.16)((Al13.44Si34.56)O96)(H2O)5.63)

trace medium

Clinochlore-1MIIb ((Mg,Al)6(Si,Al)4O10(OH)8) trace medium







18_1874NAGROM


12/11/2018MM SC6 50:5018_1874_03



IJ)

c :::, 0 0

0 0

g

0 g g

0 0 0 0 N

0 0 0 0


10 20 30 40

PDF 00-019-0926 KAISi308 Microcline, ordered PDF 00-012-0242 (Mg,Al)6(Si,Al)4O10(OH)8 Clinochlore--1Mllb PDF 01-070-3754 K(Al4Si2O9(OH)3) Muscovite--2M1 PDF 04-016-4169 Na0.8Mg3.1Si4O11(OH) amphibole, syn I Sodium Magnesium Sil icate Hydroxide PDF 01-085-0912 Li2KAl(AI0.13Si3.87O10)FOH Lepidollte-- 1 M PDF 00-010-0492 KMg3(Si3Al)O10(OH)2 Phlogoplte-3T PDF 01-078-3947 Cs10.37Na2.16 Al13.44Si34.56 096 H2O 5.63 Polluclte

50 60 70 80



product


Sample preparation

Analysis

Summary


Spodumene (LiAlSi2O6) 48 goodQuartz, syn (SiO2) 20 goodAlbite (Na0.986Al1.005Si2.995O8) 14 mediumMicrocline, sodian (K0.85Na0.15AlSi3O8) 7 mediumMuscovite-2M1 (K(Al4Si2O9(OH)3)) 4 mediumamphibole group, syn | Sodium Calcium Magnesium Aluminum Scandium Silicon Oxide Fluoride (Na1.97Ca0.98Mg4.14Sc0.86Al0.79Si7.21O22F2)

3 medium

Lepidolite-1M (KLi1.56Al1.3Al0.51Si3.49O10F2) 1 lowClinochlore-1MIIb ((Mg,Al)6(Si,Al)4O10(OH)8) 1 mediumCalcite, syn (Ca(CO3)) 1 lowTalc (Mg3Si4O10(OH)2) trace low

eucryptite, syn | Lithium Aluminum Silicate (LiAl(SiO4)) trace low







18_1874NAGROM


12/11/2018MM SC4 Coarse18_1874_04


37 Kensington Street East Perth

WA 6004

IJ)

c :::, 0

(.)

0 0 0 0 <D

0 0 0 0

"' 0 0 0 0 ... 0 0

g 0 0 0 0 N

0 0 0 0


10 20 30 40 50 60 70 80


Attachment 10 – Respirable XRD minerals (including respirable silica) for the 6% fine

product

Version 2.0

Client: Nagrom Job number: 18_1874 Sample: 18_1874_02 RFS Client ID: MM SC6 Fines Date: 12/11/2018 Analysis: Respirable alpha-quartz concentration analysis by x-ray diffraction (XRD) and scanning

electron microscopy (SEM) using the modified SWeRF method¹ Sample Preparation The sample was supplied to Microanalysis Australia as a bulk sample. The sample was tested as received. A representative sub-sample was wet sieved at 63 μm, and the < 63 μm fraction (suspension) was thoroughly homogenized and sized by laser diffraction reporting size between 63 μm and 20 nm. The respirable fraction was abstracted by settling and decantation, and the abstracted particle size, composition and morphology was verified by scanning electron microscope (SEM) for equivalent aerodynamic diameter (EAD). Once the equivalent aerodynamic size was verified by SEM, the abstracted fraction was analysed qualitatively and quantitatively by x-ray diffraction to assess the alpha-quartz concentration. Analysis The wet sieving was conducted using a light-flow (approximately 1 L /min) water spray jet on a 63 μm stainless steel Endecotts sieve. The < 63 μm fraction was collected in a bucket for laser diffraction analysis. Each size fraction was then oven dried at 105 C. The dried weights of each of the fractions were noted and the fraction percentage calculated based on the original dried starting weight. The laser diffraction size distribution analyses were conducted using a Malvern Mastersizer MS2000 calibrated using QAS3002 certified reference material and certified within specification. The analyses were conducted following ISO13320-1:1999. For the sedimentation, the time for a specific fall height for PM4 (EAD) particles was calculated using Stokes Law. The samples were then homogenised and allowed to settle for the calculated time before the supernatant was decanted off, down to the limit of the fall height. The density and viscosity of water at 21 C, and an assumed particle density of 2.65 g/cc were used. The electron microscope used was a Carl Zeiss EVO50 equipped with an Oxford Instruments INCA energy dispersive spectrometer (EDS). All images were acquired using backscatter electrons, unless otherwise specified to highlight particle composition. The contrast in backscatter electron images is proportional to average elemental composition i.e. the brighter the particle the higher the atomic number. Some images with contrasting brightness particles were examined by EDS for elemental composition. The extracted fraction was deposited on a filter membrane for XRD analysis. Quantification was by the peak area integration method. Only crystalline material present in the sample will give peaks in the XRD scan. Amorphous (non crystalline) material will add to the background. The search match software used was EVA (Bruker). The ICDD card set was ICDD PDF4/Minerals 2018. The x-ray source was cobalt radiation. ICCD match probabilities are reported as an indication of how well the diffraction peaks of this sample compare with currently published


~ microanalysis ~ oustrolio

Version 2.0

literature on the quoted mineral. No Rietveld refinement was conducted on the acquired spectrum unless otherwise stated. The respirable quartz concentration of the bulk was calculated by multiplying the volume percent of the respirable-only (PM4) fraction by the alpha-quartz concentration of the respirable only fraction. Summary The size distribution of the sample by wet sieving and laser diffraction is shown below:

Client ID Size fraction (by aerodynamic diameter) volume percent

Non-inhalable Inhalable, PM100 Thoracic, PM10 Respirable, PM4 MM SC6 Fines 73.99 26.01 4.81 2.13

Assuming all mineral phases occur at the same relative concentrations across all size intervals, a volume percent distribution equates to a mass distribution. The respirable fraction, PM4 is therefore 2.13 wt %. The normalised, interpreted semi-quantitative mineralogy by X-ray diffraction of the abstracted PM4 fraction is shown below:

The XRD interpretation determined the PM4 fraction to be approximately 27 wt % amorphous. The above percentages represent only the crystalline fraction. The respirable (PM4) crystalline silica concentrations with respect to the bulk sample are shown below:

Respirable (PM4) wt % of the bulk material for mineral phase Lab number Client ID α-quartz Cristobalite Tridymite 18_1874_02 MM SC6 Fines 0.179 <0.001 <0.001

Note: Three polymorphs of crystalline silica are scheduled as Group 1 carcinogens by IARC – quartz, cristobalite and tridymite². Analysed: Sumudu Ariyawansa, B.Sc.(Agriculture)(Hons), Dip.(Laboratory Technology) Dan Cukierski, B.Sc.(Geology), M.Sc.(Geoscience) Ian Davies, B.Sc.(Chemistry) Reported: Ian Davies, B.Sc.(Chemistry) Approved: Owen Carpenter, B.Sc.(Physics) ¹ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3979281/ ² https://monographs.iarc.fr/ENG/Monographs/vol100C/mono100C-14.pdf

Mineral phase Concentration (wt %) of PM4 only

ICDD match probability

Spodumene (Li Al Si2 O6) 45 good Albite low (Na ( Al Si3 O8 )) 12 good Muscovite (K Al2 ( Si3 Al ) O10 ( O H )2) 12 medium Quartz, syn (Si O2) 11 good Nontronite-15A (Na0.3 Fe2 Si4 O10 ( O H )2 ·4 H2 O) 9 low Clinochlore-1M#I#I#b, ferroan (( Mg , Fe )6 ( Si , Al )4 O10 ( O H )8) 7 medium Amphibole (Al3.2 Ca3.4 Fe4.0 K.6 Mg6.0 Na1.0 Si12.8 O44 ( O H )4) 2 medium Talc-2M (Mg3 Si4 O10 ( O H )2) 1 low

Attachment 11 - Respirable XRD minerals (including respirable silica) for the 6% coarse

product

Version 2.0

Client: Nagrom Job number: 18_1874 Sample: 18_1874_01 RFS Client ID: MM SC6 Coarse Date: 12/11/2018 Analysis: Respirable alpha-quartz concentration analysis by x-ray diffraction (XRD) and scanning




Version 2.0



Non-inhalable Inhalable, PM100 Thoracic, PM10 Respirable, PM4 MM SC6 Coarse 99.80 0.20 0.03 0.01



Respirable (PM4) wt % of the bulk material for mineral phase Lab number Client ID α-quartz Cristobalite Tridymite 18_1874_01 MM SC6 Coarse 0.001 <0.001 <0.001

Note: Three polymorphs of crystalline silica are scheduled as Group 1 carcinogens by IARC – quartz, cristobalite and tridymite². Analysed: Sumudu Ariyawansa, B.Sc.(Agriculture)(Hons), Dip.(Laboratory Technology) Dan Cukierski, B.Sc.(Geology), M.Sc.(Geoscience) Ian Davies, B.Sc.(Chemistry)



Spodumene (Li Al Si2 O6) 23 good Albite low (Na ( Al Si3 O8 )) 18 good Nontronite-15A (Na0.3 Fe2 Si4 O10 ( O H )2 ·4 H2 O) 14 low Muscovite-3T (( K , Na ) ( Al , Mg , Fe )2 ( Si3.1 Al0.9 ) O10 ( O H )2) 11 medium Quartz, syn (Si O2) 10 good Clinochlore-1M#I#I#b, ferroan (( Mg , Fe )6 ( Si , Al )4 O10 ( O H )8) 9 medium Maghemite-Q, syn (Fe2 O3) 6 low Calcite, magnesian (( Mg0.129 Ca0.871 ) ( C O3 )) 2 medium Natrojarosite, syn (Na Fe3 ( S O4 )2 ( O H )6) 2 low Amphibole (Al3.2 Ca3.4 Fe4.0 K.6 Mg6.0 Na1.0 Si12.8 O44 ( O H )4) 2 medium Petalite (Li Al Si4 O10) 1 low Talc-2M (Mg3 Si4 O10 ( O H )2) 1 low Microcline (K Al Si3 O8) 1 low Pollucite (Cs12 Na4 Al16 Si32 O96 ( H2 O )4) trace low

Version 2.0

Reported: Ian Davies, B.Sc.(Chemistry) Approved: Owen Carpenter, B.Sc.(Physics) ¹ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3979281/ ² https://monographs.iarc.fr/ENG/Monographs/vol100C/mono100C-14.pdf

Attachment 12 - Respirable XRD minerals (including respirable silica) for the 6% 50-50

product

Client: NAGROM Job number: 18_1411 Sample: 18_1411_02 Client ID: MM Sc6 Enviro Comp Respirable Date: 7th of September 2018 Analysis: Respirable alpha-quartz concentration analysis by x-ray diffraction (XRD) and scanning

electron microscopy (SEM) using the modified SWeRF method¹

Sample Preparation The sample was supplied to Microanalysis Australia as a bulk sample in a plastic bag. The sample was tested as received. A representative sub-sample was wet sieved at 150 μm, and the < 150 μm fraction (suspension) was thoroughly homogenized and sized by laser diffraction reporting size between 150 μm and 20 nm. The respirable fraction was abstracted from the < 150 μm suspension by settling and decantation, and the abstracted particle size, composition and morphology was verified by scanning electron microscope (SEM) for equivalent aerodynamic diameter (EAD). Once the equivalent aerodynamic size was verified by SEM, the abstracted fraction was analysed qualitatively and quantitatively by x-ray diffraction to assess the alpha-quartz concentration. Analysis The wet sieving was conducted using a light-flow (approximately 1 L /min) water spray jet on a nested stack of stainless steel Endecotts sieves at 150 μm. The < 150 μm fraction was collected in a 1 L bucket. Each size fraction was oven dried at 105 C. The dried weights of each of the fractions were noted and the fraction percentage calculated based on the original dried starting weight. The laser diffraction size distribution analyses were conducted using a Malvern Mastersizer MS2000 calibrated using QAS3002 certified reference material and certified within specification. The analyses were conducted following ISO13320-1:1999. For the sedimentation, the time for a specific fall height for PM4 (EAD) particles was calculated using Stokes Law. The samples were then homogenised and allowed to settle for the calculated time before the supernatant was decanted off, down to the limit of the fall height. The density and viscosity of water at 21 C, and an assumed particle density of 2.65 g/cc were used. The electron microscope used was a Carl Zeiss EVO50 equipped with an Oxford Instruments INCA energy dispersive spectrometer (EDS). All images were acquired using backscatter electrons, unless otherwise specified to highlight particle composition. The contrast in backscatter electron images is proportional to average elemental composition i.e. the brighter the particle the higher the atomic number. Some images with contrasting brightness particles were examined by EDS for elemental composition. The extracted fraction was deposited on a filter membrane for XRD analysis. A calibration suite of known alpha-quartz content, PM4 sized alpha-quartz particulate (NBS 1878a), loaded membranes were used as a calibration series against which the abstracted respirable fines on the filter membranes from the processed sample were compared. Additional scan time was undertaken to achieve better signal to noise ratios in the spectrum.



Quantification was by the peak area integration method. Only crystalline material present in the sample will give peaks in the XRD scan. Amorphous (non crystalline) material will add to the background. The search match software used was EVA (Bruker). The ICDD card set was ICDD PDF4+ 2016. The x-ray source was cobalt radiation. ICCD match probabilities are reported as an indication of how well the diffraction peaks of this sample compare with currently published literature on the quoted mineral. No Rietveld refinement was conducted on the acquired spectrum unless otherwise stated. The respirable quartz concentration of the bulk was calculated by multiplying the volume percent of the respirable-only (PM4) fraction by the alpha-quartz concentration of the respirable only fraction. Summary The size distribution of the sample by wet sieving and laser diffraction is shown below:


Non-inhalable Inhalable, PM100 Thoracic, PM10 Respirable, PM4 MM Sc6 Enviro Comp Respirable 85.15 14.85 2.03 0.85

Assuming all mineral phases occur at the same relative concentrations across all size intervals, a volume percent distribution equates to a mass distribution. The respirable fraction, PM4, is therefore 0.85 wt %. The normalised, interpreted semi-quantitative mineralogy by X-ray diffraction of the abstracted PM4 fraction is shown below:


Respirable (PM4) wt % of the bulk material for mineral phase Lab number Client ID α-quartz Cristobalite Tridymite

18_1411_02 MM Sc6 Enviro Comp Respirable 0.055 <0.001 <0.001

Note: Three polymorphs of crystalline silica are scheduled as Group 1 carcinogens by IARC – quartz, cristobalite and tridymite². Analysed: Sumudu Ariyawansa, B.Sc.(Agriculture)(Hons), Dip.(Laboratory Technology) Dan Cukierski, B.Sc.(Geology), M.Sc.(Geoscience) Ian Davies, B.Sc.(Chemistry) Reported: Ian Davies, B.Sc.(Chemistry) Approved:



Spodumene (Li Al Si2 O6) 27 good Muscovite 2M1 (( K0.82 Na0.18 ) ( Fe0.03 Al1.97 ) ( Al Si3 ) O10 ( O H )2) 25 medium Clinochlore-1M#I#I#b (( Mg5 Al ) ( Si , Al )4 O10 ( O H )8) 14 medium Nontronite-15A (Na0.3 Fe2 Si4 O10 ( O H )2 ·4 H2 O) 12 low Albite low (Na ( Al Si3 O8 )) 12 good Quartz, syn (Si O2) 8 good Amphibole (Al3.2 Ca3.4 Fe4.0 K.6 Mg6.0 Na1.0 Si12.8 O44 ( O H )4) 2 medium

¹ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3979281/ ² https://monographs.iarc.fr/ENG/Monographs/vol100C/mono100C-14.pdf

Attachment 13 - Respirable XRD minerals (including respirable silica) for the 4% coarse

product

Version 2.0

Client: Nagrom Job number: 18_1874 Sample: 18_1874_04 RFS Client ID: MM SC4 Coarse Date: 12/11/2018 Analysis: Respirable alpha-quartz concentration analysis by x-ray diffraction (XRD) and scanning




Version 2.0



Non-inhalable Inhalable, PM100 Thoracic, PM10 Respirable, PM4 MM SC4 Coarse 99.74 0.26 0.05 0.02



Respirable (PM4) wt % of the bulk material for mineral phase Lab number Client ID α-quartz Cristobalite Tridymite 18_1874_04 MM SC4 Coarse 0.002 <0.001 <0.001

Note: Three polymorphs of crystalline silica are scheduled as Group 1 carcinogens by IARC – quartz, cristobalite and tridymite². Analysed: Sumudu Ariyawansa, B.Sc.(Agriculture)(Hons), Dip.(Laboratory Technology) Dan Cukierski, B.Sc.(Geology), M.Sc.(Geoscience) Ian Davies, B.Sc.(Chemistry) Reported: Ian Davies, B.Sc.(Chemistry) Approved: Owen Carpenter, B.Sc.(Physics)



Spodumene (Li Al Si2 O6) 17 good Clinochlore-1M#I#I#b, ferroan (( Mg , Fe )6 ( Si , Al )4 O10 ( O H )8) 16 medium Albite low (Na ( Al Si3 O8 )) 15 good Quartz, syn (Si O2) 14 good Muscovite-3T (( K , Na ) ( Al , Mg , Fe )2 ( Si3.1 Al0.9 ) O10 ( O H )2) 12 medium Amphibole (Al3.2 Ca3.4 Fe4.0 K.6 Mg6.0 Na1.0 Si12.8 O44 ( O H )4) 11 medium Nontronite-15A (Ca0.1 Fe2 ( Si , Al )4 O10 ( O H )2 ·4 H2 O) 7 low Talc-2M (Mg3 Si4 O10 ( O H )2) 4 low Augite (Ca ( Fe , Mg ) Si2 O6) 3 low Microcline, intermediate (K Al Si3 O8) 2 low

Version 2.0

¹ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3979281/ ² https://monographs.iarc.fr/ENG/Monographs/vol100C/mono100C-14.pdf

Attachment 14 - Asbestos content (%) for the 6% fine product

Be Confident We See More www.microanalysis.com.au Page 1 of 10

Client: Nagrom Job number: 18_1874 Sample: 18_1874_02 Client ID: MM SC6 Fines Date: 12/11/2018 Analysis: Fibre characterisation and quantification by scanning electron microscopy (SEM) with elemental

analysis by energy dispersive spectroscopy (EDS) Sample preparation The sample was supplied to Microanalysis Australia as a bulk sample. A representative sub-sample of the bulk material was dried and sieved at 150μm. A representative sub-sample of the undersize material was placed on a carbon stub. Non-conducting samples require coating prior to SEM analysis to prevent charging whilst being analysed by the electron beam. Analysis The sample was analysed using a Carl Zeiss EVO50 scanning electron microscope (SEM) fitted with an Oxford INCA X-Max energy dispersive spectrometer (EDS). EDS is a semi-quantitative technique (at best) on well prepared, optically flat samples. Factors such as sample unevenness may adversely bias elemental concentration interpretation. EDS has a spatial resolution of ~5 μm meaning spectra from particles less than this size may contain elemental concentrations biased by their surroundings. All images were acquired using backscatter electrons. Image brightness is proportional to average atomic number – the brighter the pixel, the higher the atomic number of the element. Actinolite has the stoichiometric formula Ca2(Fe,Mg)5Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe, Mg, Ca and H (H is not detectable by EDS). Actinolite is an amphibole asbestos mineral with a fibrous habit characterised by parallel sided, blocky fibres with irregular terminations. Actinolite forms a solid solution mineral series with Tremolite. Anthophyllite is an amphibole mineral which is polymorphic with Cummingtonite. It has the stoichiometric formula (Mg, Fe)7Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe/Mg and H (H is not detectable by EDS). Cummingtonite is the magnesium endmember of the Cummingtonite-Grunerite mineral series. The more highly asbestiform fibres are commonly towards the iron-rich end member Grunerite. The series has the stoichiometric formula Mg2Mg5Si8O22(OH)2 – Fe2Fe5Si8O22(OH)2.


" microanalysis ~ australia


Summary Following NOHSC:3003 “The Membrane Filter Method” (2005), a fibre is countable if its diameter is < 3 μm and its length is > 5 μm and has an aspect ratio of greater than 3 to 1. Following the DMP document “Management of Asbestos in Mining Operations”, Section 9.33.3 a fibre is countable if its diameter is < 1 μm and its length is > 5 μm. For the purposes of this analysis the NOHSC definition has been used. As the concentration using these counting criteria was < 0.01%, the DMIRS/DMP approach was not required. A total of 200 images/fields were examined. Each field was approximately 70 μm by 55 μm - a total area of 3.85 x 10-3 mm2. In the 200 images/fields examined, a total of 16 countable asbestos fibres were observed. A majority of the observed countable asbestos fibres had an elemental composition indicative of actinolite, with a minor concentration of anthophyllite. The w/w% of countable asbestos fibres in the bulk sample was determined to be 0.002 %. The ore density was assumed to be 3.1 g/cc. A selection of images/fields and associated elemental spectra are reported below. The fields are not representative of the 100 fields analysed. The images/fields were reported due to their higher fibre count.

Fibre #

Image/Field #

Diameter (μm)

Length (μm)

Major Elements Minor Elements Morphology

Assigned mineralogy

1 1/1 1.1 17.3 16 :1 O, Si Mg, Fe Non-parallel sides Anthophyllite2 7/1 0.6 5.4 9 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite3 19/1 0.5 12.1 24 :1 O, Si Al, Na, Fe Non-parallel sides Albite4 22/1 0.7 9.1 13 :1 O, Si Al, Ca, Fe, Mg Irregular ends Actinolite5 23/1 0.9 16.9 19 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite6 24/1 1.1 24.5 22 :1 O, Si Mg, Fe Parallel sides Anthophyllite7 27/1 0.6 7.3 12 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite

Aspect ratio

It should be noted that the higher resolution of the SEM may increase the number of fibres observed when compared with optical microscopy (as specified in the Membrane Filter Method). A concerted attempt has been made to ensure that the sample analysed is representative, but due to the non-homogeneity of the sample, some variation in calculated concentration may be observed. Analyst: Sandy Lam, B.Sc.(Multidisciplinary) Reported: Sandy Lam, B.Sc.(Multidisciplinary) Approved: Nimue Pendragon, B.Sc.(Nanotechnology)


Project: 18_1874 Owner: lab Site: Site of Interest 1

Sample: 18_1874_02 Type: Default ID: MM SC6 Fines

. a

0

Si

s Ca Ca

1 2 :ull Scale 81}96 cts Cursor: l}_QQI}

J 4 5

Fe

6 7 8 9

Spectrum 1

10 ke

microanalys!s austraha




C

K

Ca

r n

A l

1 2 :ull Scale 5170 cts Cursor: 0.000

J

Ca Mn

4 5 6

Fe

Mn Fe

7 8 9

Spectrum 1

10

ke





Si

C

A l

1 2 :ull Scale 4052 cts Cursor: 0.000 J 4 5 6

Fe

7 8 9

Spectrum 1

10 ke





C

K 0 Ca

Mg

A l


Ca

K

3 4 5 6

Spectrum 1

Fe Fe

7 8 9 10 ke

0 microanalys!s austraha




Spectrum 1

Si

0

Mg

A l Ca

s K Ca Fe Fe


3 4 9 10 7 8 ke

5 6





C

K

Ca

Mg

Si

A l


Ca

K K Ca Cr

3 4 5

Spectrum 1

Fe Cr Fe

6 7 8 9 10

ke





0

Si

Ca

s K K Ca

0 1 2 J 4 Full Scale 9640 cts Cursor: 0.000

Fe

5 6 7 8 9

Spectrum 1

10 ke



Client: Nagrom Job number: 18_1874 Sample: 18_1874_01 Client ID: MM SC6 Coarse Date: 12/11/2018 Analysis: Fibre characterisation and quantification by scanning electron microscopy (SEM) with elemental

analysis by energy dispersive spectroscopy (EDS) Sample preparation The sample was supplied to Microanalysis Australia as a bulk sample. A representative sub-sample of the bulk material was dried and sieved at 150μm. A representative sub-sample of the undersize material was placed on a carbon stub. Non-conducting samples require coating prior to SEM analysis to prevent charging whilst being analysed by the electron beam. Analysis The sample was analysed using a Carl Zeiss EVO50 scanning electron microscope (SEM) fitted with an Oxford INCA X-Max energy dispersive spectrometer (EDS). EDS is a semi-quantitative technique (at best) on well prepared, optically flat samples. Factors such as sample unevenness may adversely bias elemental concentration interpretation. EDS has a spatial resolution of ~5 μm meaning spectra from particles less than this size may contain elemental concentrations biased by their surroundings. All images were acquired using backscatter electrons. Image brightness is proportional to average atomic number – the brighter the pixel, the higher the atomic number of the element. Actinolite has the stoichiometric formula Ca2(Fe,Mg)5Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe, Mg, Ca and H (H is not detectable by EDS). Actinolite is an amphibole asbestos mineral with a fibrous habit characterised by parallel sided, blocky fibres with irregular terminations. Actinolite forms a solid solution mineral series with Tremolite. Anthophyllite is an amphibole mineral which is polymorphic with Cummingtonite. It has the stoichiometric formula (Mg, Fe)7Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe/Mg and H (H is not detectable by EDS). Cummingtonite is the magnesium endmember of the Cummingtonite-Grunerite mineral series. The more highly asbestiform fibres are commonly towards the iron-rich end member Grunerite. The series has the stoichiometric formula Mg2Mg5Si8O22(OH)2 – Fe2Fe5Si8O22(OH)2.




Summary Following NOHSC:3003 “The Membrane Filter Method” (2005), a fibre is countable if its diameter is < 3 μm and its length is > 5 μm and has an aspect ratio of greater than 3 to 1. Following the DMP document “Management of Asbestos in Mining Operations”, Section 9.33.3 a fibre is countable if its diameter is < 1 μm and its length is > 5 μm. For the purposes of this analysis the NOHSC definition has been used. As the concentration using these counting criteria was < 0.01%, the DMIRS/DMP approach was not required. A total of 200 images/fields were examined. Each field was approximately 70 μm by 55 μm - a total area of 3.85 x 10-3 mm2. In the 200 images/fields examined, a total of 11 countable asbestos fibres were observed. A majority of the observed countable asbestos fibres had an elemental composition indicative of actinolite, with a minor concentration of anthophyllite. The w/w% of countable asbestos fibres in the bulk sample was determined to be less than 0.001 %. The ore density was assumed to be 3.1 g/cc. A selection of images/fields and associated elemental spectra are reported below. The fields are not representative of the 100 fields analysed. The images/fields were reported due to their higher fibre count.

Fibre #

Image/Field #

Diameter (μm)

Length (μm)


Assigned mineralogy

1 3/1 0.4 7.9 22 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite2 5/2 0.7 49.5 74 :1 O, Si Mg, Fe Parallel sides Anthophyllite3 6/1 0.3 12.4 41 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite4 7/1 0.6 17.4 28 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite5 9/1 1.4 11.8 8 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite6 10/5 0.8 10.6 14 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite7 13/1 0.7 7.8 12 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite

Aspect ratio




Sample: 18_1874_01 Type: Default ID: MM SC6 Coarse

C

K O A l Ca

f.1n

K Ca

C Cl Cl

1 2 :ull Scale 25.33 cts Cursor: 0.000

J 4

Cs Cs Cs Cs Cs Mn

5 6

Fe

Mn Fe

7 8 9

Spectrum 1

10 ke





0

Fe s K

1 2 :ull Scale 112l8 cts Cursor: 0.000 J 4 5

Fe

6 7 8 9

Spectrum 2

10 ke





Spectrum 1

0 Si

A l

K Ca

Fe s K Ca Fe Fe


9 10 8 6 7 ke

4 5 J





C

K

Ca.

C

0

1,1n

Mg


Cl Cl K

J 4 5

Electron Image 1 Spectrum 1

Fe

Mn Mn

Fe

6 7 8 9 10 ke





C

K

Ca

r n

Si

A l

Mg


Ca

Ca

J 4 5

Spectrum 1

Fe

Mn Mn Fe

6 7 8 9 10 ke





C

K

Ca

C

20µm

1,1n A l


Cl Cl

J 4 5

Spectrum 5

Fe

Mn Mn Fe

6 7 8 9 10

ke





. a

0

Si

Fe s Ca

1 2 :ull Scale 8365 cts Cursor: 0.000 J 4

Fe

5 6 7 8 9

Spectrum 1

10 ke


Attachment 16 - Asbestos content (%) for the 6% 50-50 product


Client: Nagrom Job number: 18_1874 Sample: 18_1874_03 Client ID: MM SC6 50:50 Date: 12/11/2018 Analysis: Fibre characterisation and quantification by scanning electron microscopy (SEM) with elemental

analysis by energy dispersive spectroscopy (EDS) Sample preparation The sample was supplied to Microanalysis Australia as a bulk sample. A representative sub-sample of the bulk material was dried and sieved at 150μm. A representative sub-sample of the undersize material was placed on a carbon stub. Non-conducting samples require coating prior to SEM analysis to prevent charging whilst being analysed by the electron beam. Analysis The sample was analysed using a Carl Zeiss EVO50 scanning electron microscope (SEM) fitted with an Oxford INCA X-Max energy dispersive spectrometer (EDS). EDS is a semi-quantitative technique (at best) on well prepared, optically flat samples. Factors such as sample unevenness may adversely bias elemental concentration interpretation. EDS has a spatial resolution of ~5 μm meaning spectra from particles less than this size may contain elemental concentrations biased by their surroundings. All images were acquired using backscatter electrons. Image brightness is proportional to average atomic number – the brighter the pixel, the higher the atomic number of the element. Actinolite has the stoichiometric formula Ca2(Fe,Mg)5Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe, Mg, Ca and H (H is not detectable by EDS). Actinolite is an amphibole asbestos mineral with a fibrous habit characterised by parallel sided, blocky fibres with irregular terminations. Actinolite forms a solid solution mineral series with Tremolite.




Summary Following NOHSC:3003 “The Membrane Filter Method” (2005), a fibre is countable if its diameter is < 3 μm and its length is > 5 μm and has an aspect ratio of greater than 3 to 1. Following the DMP document “Management of Asbestos in Mining Operations”, Section 9.33.3 a fibre is countable if its diameter is < 1 μm and its length is > 5 μm. For the purposes of this analysis the NOHSC definition has been used. As the concentration using these counting criteria was < 0.01%, the DMIRS/DMP approach was not required. A total of 200 images/fields were examined. Each field was approximately 70 μm by 55 μm - a total area of 3.85 x 10-3 mm2. In the 200 images/fields examined, a total of 19 countable asbestos fibres were observed. All of the observed countable asbestos fibres had an elemental composition indicative of actinolite. The w/w% of countable asbestos fibres in the bulk sample was determined to be 0.001 %. The ore density was assumed to be 3.1 g/cc. A selection of images/fields and associated elemental spectra are reported below. The fields are not representative of the 100 fields analysed. The images/fields were reported due to their higher fibre count.

Fibre #

Image/Field #

Diameter (μm)

Length (μm)


Assigned mineralogy

1 13/2 0.8 10.4 13 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite2 13/3 0.9 8.3 9 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite3 16/1 0.9 9.4 10 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite4 20/1 0.8 12.0 15 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite5 25/1 0.6 14.7 25 :1 O, Si, Al - Non-parallel sides Aluminosilicate6 27/1 1.7 10.8 6 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite

Aspect ratio




Sample: 18_1874_03 Type: Default ID: MM SC6 50:50

C

K

Ca

Mg


J

Ca

K Ca

4 5 6

Spectrum 2

Fe Fe

7 8 9 10 ke





C

K

Ca

Mg

1 2 :ull Scale 61}92 cts Cursor: l}_QQI}

3

K Fe

4 5 6

Spectrum 3

Fe

7 8 9 10 ke





. a

0 Si

Mg

Fe Na s Ca Ca


J 4

Fe

5 6 7 8 9

Spectrum 1

10

ke





0

Si

Mg A l

Ca

s K K Ca


J 4

Fe

5 6 7 8 9

Spectrum 1

10

ke





C

K

0

A l

Fe


K K

J 4 5

Fe

6 7 8 9

Spectrum 1

10 ke





C

Ca

0 Mg

s


Fe

J 4 5 6

Spectrum 4

Fe

7 8 9 10 ke



Client: Nagrom Job number: 18_1874 Sample: 18_1874_04 Client ID: MM SC4 Coarse Date: 12/11/2018 Analysis: Fibre characterisation and quantification by scanning electron microscopy (SEM) with elemental

analysis by energy dispersive spectroscopy (EDS) Sample preparation The sample was supplied to Microanalysis Australia as a bulk sample. A representative sub-sample of the bulk material was dried and sieved at 150μm. A representative sub-sample of the undersize material was placed on a carbon stub. Non-conducting samples require coating prior to SEM analysis to prevent charging whilst being analysed by the electron beam. Analysis The sample was analysed using a Carl Zeiss EVO50 scanning electron microscope (SEM) fitted with an Oxford INCA X-Max energy dispersive spectrometer (EDS). EDS is a semi-quantitative technique (at best) on well prepared, optically flat samples. Factors such as sample unevenness may adversely bias elemental concentration interpretation. EDS has a spatial resolution of ~5 μm meaning spectra from particles less than this size may contain elemental concentrations biased by their surroundings. All images were acquired using backscatter electrons. Image brightness is proportional to average atomic number – the brighter the pixel, the higher the atomic number of the element. Actinolite has the stoichiometric formula Ca2(Fe,Mg)5Si8O22(OH)2. The relative concentration of elements in decreasing order is: O, Si, Fe, Mg, Ca and H (H is not detectable by EDS). Actinolite is an amphibole asbestos mineral with a fibrous habit characterised by parallel sided, blocky fibres with irregular terminations. Actinolite forms a solid solution mineral series with Tremolite.




Summary Following NOHSC:3003 “The Membrane Filter Method” (2005), a fibre is countable if its diameter is < 3 μm and its length is > 5 μm and has an aspect ratio of greater than 3 to 1. Following the DMP document “Management of Asbestos in Mining Operations”, Section 9.33.3 a fibre is countable if its diameter is < 1 μm and its length is > 5 μm. For the purposes of this analysis the NOHSC definition has been used. As the concentration using these counting criteria was < 0.01%, the DMIRS/DMP approach was not required. A total of 200 images/fields were examined. Each field was approximately 70 μm by 55 μm - a total area of 3.85 x 10-3 mm2. In the 200 images/fields examined, a total of 5 countable asbestos fibres were observed. All of the observed countable asbestos fibres had an elemental composition indicative of actinolite. The w/w% of countable asbestos fibres in the bulk sample was determined to be less than 0.001 %. The ore density was assumed to be 3.1 g/cc. A selection of images/fields and associated elemental spectra are reported below. The fields are not representative of the 100 fields analysed. The images/fields were reported due to their higher fibre count.

Fibre #

Image/Field #

Diameter (μm)

Length (μm)


Assigned mineralogy

1 5/1 0.8 6.5 8 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite2 7/1 0.5 10.3 21 :1 O, Si Al, Ca, Fe, Mg Parallel sides Actinolite3 9/1 0.5 9.4 21 :1 O, Si Al, Ca, Fe, Mg Parallel sides Actinolite4 12/2 0.7 8.5 12 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite5 17/1 1.5 16.0 10 :1 O, Si Al, Ca, Fe, Mg Non-parallel sides Actinolite

Aspect ratio





C

K

Ca

0

A l

Mg


Ca

J 4 5 6

Spectrum 1

Fe Fe

7 8 9 10 ke





C

K

Ca

r n

A l

Mg


Ca Mn

J 4 5 6

Fe Mn

Fe

7

0

Spectrum 1

8 9 10

ke





C

K

Ca

A l

Cl S Cl


J 4 5 6

Spectrum 1

Fe Fe

7 8 9 10

ke





C

K

Ca

0

A l


Ca

K K Ca

J 4 5 6

Spectrum 2

Fe Fe

7 8 9 10 ke





C

K

Ca.

0

Mg A l


Fe

J 4 5 6

Spectrum 1

Fe

7 8 9 10 ke


Attachment 18 - ICP Analysis for Radiation Calculation (4% product = ST3 and 6%

product = ST2)

Process Minerals InternationalAnalytical Report

REFERENCEREPORT DATESAMPLESDATE RECEIVED

AUTHORISATIONShane Wilson - Senior Chemist

CLIENTADDRESSCONTACTPROJECTP/O#

PTH.KMMt Marion GC 181114

November 16 2018KM-1811-037665

5November 15 2018

1 Sleat Road, Applecross Locked Bag 3, Canning Bridge LPOProcess Minerals International

N A GROM the mineral processor

49 Owen Road Kelmscott WA 6111

PO Box 66 Kelmscott WA 6991

T 08 9399 3934 F 08 9497 1415

m E [email protected] Wwww.nagrom.com au

N GROM the mineral processor

ABN 55 008 868 335

KM-1811-037665 U Th K RbMethod ICP004 ICP004 ICP004 ICP004Units ppm ppm ppm ppmLLD 0.5 0.5 1000 1

ST1 180825 - 180917 2.5 4.0 17000 1773ST2 180825 - 180917 2.0 2.5 4000 657ST3 180825 - 180917 2.5 4.0 10000 1385CV25 180825 - 180917 2.0 2.0 21000 2070CV25 180825 - 180917 REP 1.5 2.5 21000 2051TH01 180825 - 180917 3.5 4.5 18000 1927NCS_DC73317A STD 2.0 6.5 15000 60ARA09-01 STD 309.5 3344.5 8000 41

Attachment 19 – Concentrations of radionuclides in products of the Mt Marion

site (Calytrix Consulting Pty Ltd)

PO Box 83, Stoneville, WA 6081 Ph: 0405 400174 [email protected]

ABN 33121089227

Memorandum

To: K Dennison

From: N Tsurikov

Date: 18 November 2018

Subject: Concentrations of radionuclides in products of the Mt Marion site Dear Kim, On 18th of November updated values for uranium and thorium concentrations have been received from the Nagrom laboratory. The summary of available data:

4% concentrate: U = 2.5 ppm, Th = 4 ppm, Rb-87 = 1385 ppm 6% concentrate: U = 2 ppm, Th = 2.5 ppm, Rb-87 = 657 ppm

The following specific activities were used to calculate the sum for the 4% and 6% concentrates:

Uranium-238 = 12,384 Bq/g Thorium-232 = 4,055 Bq/g Rubidium = 890 Bq/g

Uranium and thorium o The combined concentrations of uranium and thorium are: 4% concentrate = 0.050 Bq/g. 6%

concentrate = 0.035. o The limit for natural uranium and thorium in transport safety regulations (and in DWER license

conditions) is 10 Bq/g. o Therefore, both products are meeting DWER license conditions and are exempt from transport safety

regulations. Rubidium o The concentrations of rubidium are: 4% concentrate = 1.233 Bq/g, 6% concentrate = 0.585 Bq/g. o The limit for Rb-87 in transport safety regulations is 10,000 Bq/g and in DWER license conditions – 30

Bq/g. o Therefore, both products are meeting DWER license conditions and are exempt from transport safety

regulations. Please let me know if any additional information will be required. Kind regards Nick Tsurikov

CAL YTRIX ~,t CONSUL TING PTY LTD ,

Attachment 20 - Metals DI Leachate Concentration for the 6% fines (A-2), 6%

coarse (A-1) and 4% coarse (A-3) products

ASLP Laboratory ReportJob Number: 18-16599-A

Revision: 00ADDRESS: Microanalysis Australia Date: 12 November 2018

37 Kensington streetEast Perth WA 6004

ATTENTION: Michael Simeoni

DATE RECEIVED: 6 November 2018

YOUR REFERENCE: 18_1874

PURCHASE ORDER:

APPROVALS:

REPORT COMMENTS:

This report is issued by Analytical Reference Laboratory (WA) Pty LtdExtractions performed according to ARL No. 069 - Preparation of Leachates - Bottle Leaching ProcedureASLP Extraction Fluid: Reagent WaterSamples are analysed on an as received basis unless otherwise noted.

METHOD REFERENCES:

ARL No. 29/402/403 Metals in Water by AAS/ICPOES/ICPMS ARL No. 040 Arsenic by Hydride Atomic Absorption ARL No. 406 Mercury by Cold Vapour Atomic Absorption Spectrophotometry

ARL GROUP46-48 Banksia Road, Welshpool, Western Australia 6106

Telephone: 08 6253 4444 Facsimile: 08 6253 4440 www.arlwa.com.au www.promicro.com.auPage 1 of 2

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Analytical Reference Laboratory

Sam Becker lnorganics Manager

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roMicro cience with E thics

A NATA

V WORLD RECOGNISED

ACCREDITATION

Accreditedlol'oompliancewith 1S0/IEC17025

NATAAccreditation No. 2377

LABORATORY REPORTMicroanalysis AustraliaARL Job No: 18-16599-A Revision: 00 Date: 12 November 2018

ASLP for Metals Sample No: LOR UNITS 18-16599-

A-118-16599-

A-218-16599-

A-3Sample Description: 18_1874_01 18_1874_02 18_1874_04

Silver - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Aluminium - Dissolved 0.1 mg/L 0.3 0.1 0.4

Arsenic - Dissolved 0.001 mg/L 0.006 0.002 0.009

Barium - Dissolved 0.01 mg/L <0.01 0.03 0.08

Cadmium - Dissolved 0.002 mg/L <0.002 <0.002 <0.002

Cobalt - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Chromium - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Copper - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Iron - Dissolved 0.01 mg/L 0.08 0.09 0.06

Lithium - Dissolved 0.01 mg/L 0.25 0.28 0.16

Mercury - Dissolved 0.0002 mg/L <0.0002 <0.0002 <0.0002

Manganese - Dissolved 0.01 mg/L <0.01 0.02 <0.01

Nickel - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Lead - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Antimony - Dissolved 0.001 mg/L 0.001 <0.001 <0.001

Thorium - Dissolved 0.001 mg/L <0.001 <0.001 <0.001

Uranium - Dissolved 0.001 mg/L <0.001 <0.001 <0.001

Zinc - Dissolved 0.01 mg/L <0.01 <0.01 <0.01

Result Definitions

LOR Limit of Reporting [ND] Not Detected at indicated Limit of Reporting [NR] Analysis Not Requested

ARL GROUP46-48 Banksia Road, Welshpool, Western Australia 6106

Telephone: 08 6253 4444 Facsimile: 08 6253 4440 www.arlwa.com.au www.promicro.com.auPage 2 of 2

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