drilling recommences at tambang tinggi gold prospect...

25 Charles Street, South Perth WA 6151 PO Box 1013, South Perth WA 6951

WESTERN AUSTRALIA Telephone: +61(8) 9368 4544 Facsimile: +61(8) 9368 4522

Web: www.sihayogold.com e-mail: [email protected] ABN: 77 009 241 374

ASX ANNOUNCEMENT 15 FEBRUARY 2011

DRILLING RECOMMENCES AT TAMBANG TINGGI GOLD PROSPECT

HIGHLIGHTS The Board of Sihayo Gold Limited (ASX: SIH) is pleased to announce that diamond drilling has recommenced at the Tambang Tinggi gold/copper prospect located in the southern area of the Company’s Contract of Work (“COW”) in North Sumatra, Indonesia. The current drilling program is following up on scout drilling undertaken in 2005. Scout drilling intersected 125 m @ 1.4 g/t Au from surface, including 25m @ 4.58 g/t Au from 31m in what is interpreted to be the phyllic alteration zone of a Porphyry Cu‐Au system. The current program is designed to potentially deliver the Company’s second JORC compliant gold resource to compliment the flagship Sihayo Pungkut Gold Project (10.7 Mt @ 2.9 g/t Au for 1.01 million oz).

Detailed surface work through the Tambang Tinggi Region is defining significant zones of gold and copper mineralisation. A soil sampling program has defined an area of approximately 2.5km by 0.6km containing anomalous gold and copper. A detailed rock chip sampling program has returned a number of high grade gold, copper and silver results, with 20% of samples returning >1 g/t Au and a best sample of 62 g/t Au. In addition, 7% of samples returned >30 g/t Ag with a best sample of 490 g/t Ag and 6% of samples returned >0.5% Cu with a best sample of 5.03% Cu.

Further exploration work currently being undertaken within the Tambang Tinggi Region includes a detailed aeromagnetic / radiometrics survey and a detailed dipole‐dipole induced polarisation survey.

BACKGROUND

The Tambang Tinggi Region is situated on a section of the Sumatran Fault system and is located in the southern portion of the Company’s COW (Refer Figure 1). The region is underlain by intercalated andesitic volcanics and limestones. Younger dacitic volcanics and sandy conglomerates overlie the andesite / limestone sequence. A hornblende diorite, weakly to moderately magnetic, has intruded the andesite / limestone sequence. Figure 2 below, shows the geology of the Tambang Tinggi Region.

Preliminin 2005 Gold mpyrite‐bbetter gconsistegold defound odips nedeeper at dept

The curtest theTTDD00

The wid2, 3 andTable 1 20 signi

P

T

T

Ta

T

Ta

Ba

nary field w and 2006.

TTDD001 TTDD002 TTDD003 TTDD004

ineralisatiobornite‐chagold gradesent with phposits. Alteon the peripar vertical shypogene h.

rrent drill pe strike and 04. Figure 5

der Tamband 4 illustrateclassifies eificant rock

Prospect Nam

Tambang Ting

Tambang Ub

Tambang Hita

Tambang Ailu

mbang Kayur

Tambang Bawa

mbank Siman

Aek Oneleh

abisik Vein Zo

25 Charles Stre

TelepWeb: ww

work and sco Best result

n intersectelcopyrite‐py correlate wyllic alterateration is suphery of higstriking Norparts of the

rogram at Tdepth pote5 below, is a

ng Tinggi Ree recent surach prospechips for go

me

ggi Cop

bi Cop

m Epi

ul Cop

uyo Stru

ah Gol

ntuk Epi

Gol

one She

Table 1: Ta

eet, South Perth WES

phone: +61(8) 93ww.sihayogold.co

AB

out drilling wts from scou

87m @ 0.125m @ 1. 90m @ 0. 4m @ 0.6 18m @ 0. 4m @ 1.0 3m @ 1.9

ed in TTDD0yrite‐tourmwith limonittion that is cubtly overprgh sulphidatth Westerlye system is a

Tambang Tiential of signa geology a

gion is endorface work, ct in the Taold, copper

pper‐Gold in p

pper‐Gold ska

thermal gold

pper‐Gold in p

ucturally cont

ld‐Silver‐Copp

thermal gold

ld‐Copper ska

eeted epitherm

ambang Tin

WA 6151 PO B

STERN AUSTRA368 4544 Facsimom e-mail: sihBN: 77 009 241 3

were underut drilling w

7 g/t Au fro.4 g/t Au fro4 g/t Au fro6 g/t Au fro5 g/t Au fro0 g/t Au fro9 g/t Au fro

001 to TTDDmaline alterate veins / fracommonly irinted by vution epithery. Anomaloa potential

nggi Prospenificant minnd drill plan

owed with gsignificant mbang Ting and silver f

M

phyllic alterat

arn

veins

phyllic alterat

trolled quartz‐

per in quartz v

– silver veins

arn

mal gold – silv

nggi Region

Box 1013, SouthALIA

mile: +61(8) 9368hayogold@sihayo374

rtaken overwere from th

om surfaceom surfaceom surfaceom 47m andom 55m andom 78m andom 86m

D004 is assoation and limactures. Altidentified auggy acid lermal deposious copper (vector to po

ect consists neralisationn of the Tam

gold and cogeochemistggi Region. from the to

Mineralisation

ion zone

ion zones

‐malachite ve

veins (Interme

ver veins

n mineralisa

Perth WA 6951

8 4522 ogold.com

r the Tambahe Tambang

d d d

ociated withmonite veinteration midjacent to pached textuts. Mineral(chalcopyritorphyry cop

of 8 diamo interceptembang Tingg

opper minertry and proTable 2 sumtal 497 sam

Style

ins

ediate epither

ation styles

1

ang Tinggi Rg Tinggi Pro

h silica‐sericns / fractureneralogy is porphyry coures that arlisation / altte‐bornite) pper minera

ond drill holed in TTDD0gi Prospect.

ralisation. Fspect locatimmarises thmples.

rmal level)

2

Region ospect:

cite‐es. The

opper‐re often teration in the alisation

es to 01 to .

Figures ions. he top

The proalteratimineraexplora

“This is JORC Coacross o

Yours faSIHAYO

Paul WiChief Ex15th Feb CompetentSihayo Goldcompiled bMr Rowley activity whof Exploratinformation Runge LimiWilliams BSsufficient exundertakinMineral Resform and co Modelling:envelopes phigher grad25m EW bygrade cuts upon the re Note All statemethe Compaexpectationstatementslooking stathings comapprovals,

oximity (aboon) of prosplisation is reation drilling

1) Targetin2) Targetin

magnetdefining

an excitingompliant reour COW ar

ithfully, GOLD LIMIT

llis ecutive Officbruary 2011

t Persons Statemd Limited: The infy Mr Darin Rowlehas sufficient expich he is undertakion Results, Minen in the form and

ited: The informaSc, a Member of txperience which g to qualify as a Csources and Ore ontext in which it

: The Sihayo depoprepared using a de zones. In all cay 10m NS by 5m vwere required in esults of 853 bulk

ents in this reportny expects, are fons expressed in sus are not guaranttements. Factorsmodity prices, coand general econ

25 Charles Stre

TelepWeb: ww

out 2km radpects in theelated to a pg will be con

ng near surng possible tics and dipg the drillin

g time for thesource andrea”, said M

TED

cer

ments formation in thisey (BSc.Geol Honsperience which isking to qualify aseral Resources and context in which

ation in this reporthe Australian Insis relevant to theCompetent PersoReserves. Mr Wilt appears.

osit was estimatenominal 0.5g/t g

ases a minimum dvertical with sub‐the estimate. Gr

k density determin

t, other than stateorward looking stuch forward lookitees of future perfs that could causeontinued availabilnomic, market or



AB

dius), abunde Tambang Tporphyry conducted in 2

face Au targdeeper Au‐ole‐dipole ig programm

he Companyd continuingMr. Peter Bil

s report that relats 1

st class) who is

s relevant to the ss a competent pernd Ore Reserves”.h it appears.

rt that relates to stitute of Mining e style of mineralion as defined in thlliams consents to

ed by Runge Limitgold cut‐off graddownhole intercecells of 6.25m byrades were estimanations.

ements of historitatements. Althoing statements aformance and ace actual results tolity of capital andr business conditio

WA 6151 PO B


dance and sTinggi Regioopper‐gold 2 phases:

gets; ‐Cu mineralnduce polame.

y, with the pg to explorebe, Chairma

tes to explorations a full time emplostyle of mineralisarson as described Mr Rowley conse

Mineral Resourceand Metallurgy, isation and type ohe 2004 Edition oo the inclusion in

ted using Ordinarde for the lower grpt length of 2m wy 2.5m by 1.25m. ated using Ordina

ical facts that addugh Sihayo Gold re based on reasoctual results or deo differ materiallyd financing, timinons.

Box 1013, SouthALIA


tyle (skarn,on suggestssystem at d

lisation, whrisation sur

possibility o additional an.

n, mineral resourcoyee of PT Sorikmation and type ofd by the 2004 Editents to the inclus

es at Sihayo is bawho is a full timeof deposit under cof the Australasiathe report of the

ry Kriging grade inrade upper weathwas adopted. TheStatistical analysary Kriging. Bulk d

dress future timinLimited, its subsionable expectatioevelopments mayy from forward long and receipt of e

Perth WA 6951

8 4522 ogold.com

epithermas that the cudepth. Acco

here detailerveys will as

of delineatinhighly pros

ces or ore reservemas Mining, and if deposit under cotion of the “Austrsion in this report

ased on informatie employee of Ruconsideration anan Code of Reporte matters based o

nterpolation, conhered zone, and 1e block dimensionsis of the deposit density was assig

ngs, activities, evediaries, officers aons, investors arey differ materiallyooking statementenvironmental an

1

l, phyllic urrently ideordingly,

d airborne ssist in bette

ng our secospective pro

es is based on infois a Member of thonsideration and ralasian Code fort of the matters b

on compiled by Munge Limited and d to the activity wting for Exploratioon his information

nstrained by mine1.0g/t Au in the ns used in the modetermined that gned in the mode

ents and developand consultants be cautioned that y from those in thts include, amongnd other regulato

3

ntified

er

nd ospects

ormation he AusIMM. d to the r Reporting based on his

Mr Robert has which he is on Results, n in the

eralisation deeper odel were no high

el based

pments that believe the such e forward gst other ory

Sample ID

E

973038

947954

973152

944489

948586

977682

973141

948584

948585

926084

948555

947959

926143

944498

948551

977708

948549

973140

926142

973025

977682

926084

977670

977681

926310

977665

973136

973140

973152

973138

973138

947955

948555

926309

944498

947954

948549

926091

973017

25 Charles Stre

TelepWeb: ww

Easting Nor

594231 67

593159 66

591708 68

592055 67

594239 67

593329 67

591710 68

594243 67

594241 67

590154 67

592900 68

591998 67

589852 68

592056 67

592539 67

591935 68

592305 67

591712 68

589858 68

592782 67

593329 67

590154 67

593596 65

593252 67

592126 68

593096 65

593165 66

591712 68

591708 68

593153 66

593153 66

593168 66

592900 68

592125 68

592056 67

593159 66

592305 67

590156 67

592045 67



AB

rthing Sam

7418 ConC

6025 O

8128 Hi

7602 O

7350 ConC

7069 Hi

8123 Hi

7350 ConC

7350 ConC

7714 O

8115 O

7517 Hi

8361 O

7602 O

7923 ConC

8078 O

7806 ConC

8125 Hi

8361 O

7777 ConC

7069 Hi

7714 O

5814 O

7129 Hi

8024 O

5991 Hi

6019 O

8125 Hi

8128 Hi

6012 ConC

6012 ConC

6025 O

8115 O

8025 O

7602 O

6025 O

7806 ConC

7712 O

7614 ConC

WA 6151 PO B


ple Type ID (

ntinuous hannel

Outcrop

ill Float

Outcrop

ntinuous hannel

ill Float

ill Float

ntinuous hannel

ntinuous hannel

Outcrop

Outcrop

ill Float

Outcrop

Outcrop

ntinuous hannel

Outcrop

ntinuous hannel

ill Float

Outcrop

ntinuous hannel

ill Float

Outcrop

Outcrop

ill Float

Outcrop

ill Float

Outcrop

ill Float

ill Float

ntinuous hannel

ntinuous hannel

Outcrop

Outcrop

Outcrop

Outcrop

Outcrop

ntinuous hannel

Outcrop

ntinuous hannel

Box 1013, SouthALIA


Au (ppm)

Ag (ppm

62.00 45

55.00 85

54.00 107

46.07 36

39.60 6

31.45 490

31.30 11

29.90 6

23.90 3

21.30 438

20.10 93

17.75 16

17.10 22

17.10 87

17.00 3

16.55 2

16.30 72

16.20 113

16.00 24

15.00 0

31.45 490

21.30 438

12.15 401

6.71 368

12.80 275

6.27 239

7.67 122

16.20 113

54.00 107

3.38 107

3.38 107

3.41 95

20.10 93

9.80 92

17.10 87

55.00 85

16.30 72

2.55 65

0.18 59

Perth WA 6951

8 4522 ogold.com

m) Cu (%)

P(p

0.1 9

0.0 5

7 0.6 8

0.1 1

0.0 3

0 0.0

0.1 2

0.1 3

0.0

8 0.0

0.2 7

0.2 2

1.4

2.1 1

0.0 1

0.0

0.3 38

3 1.5 1

1.6

0.0

0 0.0

8 0.0

1 0.0

8 0.0

5 0.9 34

9 0.0 6

2 0.0 3

3 1.5 1

7 0.6 8

7 0.0 6

7 0.0 6

0.0 3

0.2 7

0.7

2.1 1

0.0 5

0.3 38

0.0

0.2

1

Pb pm)

Zn (ppm)

100 1280

528 167

888 8100

125 274

358 93

25 16

238 3790

348 111

55 146

53 399

738 632

214 368

15 108

114 604

105 272

19 49

8600 4070

513 652

17 56

31 97

25 16

53 399

21 18

20 23

423 4150

629 149

322 248

513 652

888 8100

628 237

628 237

367 199

738 632

33 260

114 604

528 167

8600 4070

53 87

53 1060

4

NB: All ass

Sample ID

E

926159

973080

973037

973037

973114

973114

973088

973089

973049

944498

926364

926142

973140

926143

973094

973244

973144

944496

926310

973033

973033

ays determined b

25 Charles Stre

TelepWeb: ww

Easting Nor

592059 65

591229 66

593652 67

593652 67

591933 67

591933 67

592088 67

592064 67

591554 67

592056 67

590853 67

589858 68

591712 68

589852 68

592035 67

591769 67

593281 67

592100 67

592126 68

591683 67

591683 67

Table 2: S

by 50gm fire assa



AB

rthing Sam

5995 O

6850 Stre

7091 Stre

7091 Stre

7081 Stre

7081 Stre

7087 Stre

7073 Stre

7218 Stre

7602 O

7451 O

8361 O

8125 Hi

8361 O

7006 Stre

7220 Stre

7318 Stre

7602 O

8024 O

7265 Stre

7265 Stre

Significant

ay with AAS finish

WA 6151 PO B


ple Type ID (

Outcrop

eam Float

eam Float

eam Float

eam Float

eam Float

eam Float

eam Float

eam Float

Outcrop

Outcrop

Outcrop

ill Float

Outcrop

eam Float

eam Float

eam Float

Outcrop

Outcrop

eam Float

eam Float

recent rock

h by Intertek‐ Cale

Box 1013, SouthALIA


Au (ppm)

Ag (ppm

0.03 53

0.11 36

0.62 17

0.62

0.22 23

0.22

1.43 13

1.53 24

1.44 2

17.10 87

2.34 7

16.00 24

16.20 113

17.10 22

0.60 1

1.23 3

2.27 5

7.89 39

12.80 275

0.69 4

0.69

k chip samp

eb Brett Laborato

Perth WA 6951

8 4522 ogold.com

m) Cu (%)

P(p

0.4 11

5.0

4.7

4.7

3.6

3.6

2.5

2.5

2.5

2.1 1

1.7

1.6

3 1.5 1

1.4

1.4

0.9

0.9

0.9

5 0.9 34

0.8

0.8

ple results

ories of Jakarta

1

Pb pm)

Zn (ppm)

1933 1860

14 42

14 29

8 30

11 157

13 197

12 318

114 604

13 1640

17 56

513 652

15 108

11 54

11 243

13 40

76 373

423 4150

18 209

5

Figure 1

25 Charles S

TeWeb: w

1: Prospect loca

Street, South Perth WAWESTER

elephone: +61(8) 9368 4www.sihayogold.com

ABN:

ations and regio

A 6151 PO Box 1013, SRN AUSTRALIA 4544 Facsimile: +61(8 e-mail: sihayogold@s77 009 241 374

nal geology acro

South Perth WA 6951

) 9368 4522 sihayogold.com

oss the Sihayo PPungkut COW

6

Figure 2:

25 Charles S

TeWeb: w

: Surface plan of



ABN:

f Tambang Tingg


gi region showin

South Perth WA 6951


ng Au rock chip sample results

7

Figure 3:

25 Charles S

TeWeb: w

: Surface plan of



ABN:

f Tambang Tingg


gi region showin

South Perth WA 6951


ng Cu rock chip sample results

8

Figure 4:

25 Charles S

TeWeb: w

: Surface plan of



ABN:

f Tambang Tingg


gi region showin

South Perth WA 6951


ng Ag rock chip sample results

9

UTM Grid WG

Fig

GS 84 z47N

25 Charles S

TeWeb: w

gure 5: Tambang

Surface trace omineralisationdrilling



ABN:

g Tinggi prospec

of significant gold n intersected in scout


ct surface geolog

South Perth WA 6951


gy and current ddrill plan

550m

N

10

drilling recommences at tambang tinggi gold prospect...

Documents