Batu Mas

At the Batu Mas Prospect, which means 'Gold Rock' in Bahasa Indonesia, one of Robust’s key targets, the Company has drilled 43 holes for 5,295 metres at August 2010 with a Strike length over 350m and open in all directions. The thick zone of gold and silver mineralisation discovered by Robust at Batu Mas starts at or near surface and a zone abundant with base metal sulphides has also being discovered beneath it.

It is Robust’s belief that Batu Mas demonstrates the potential to host a world-class discovery.

Metallurgical test work to date indicates excellent recoveries of 94-95% and strike length is over 350 metres and remains open in all directions.
Initial results from the 3D IP survey carried out have extended the anomaly at Batu Mas by as much as 20 times its current size. In addition, a number of new drill targets have been defined.

Recent Drilling Highlights

LWD 051 57.5 metres at 6.75 g/t Au equivalent†
Incl. 27m at 9.36 g/t Au equivalent and 15m at 217 g/t Ag and 3.31 g/t Au
LWD 055 21 metres at 2.92 g/t Au equivalent
Incl. 10m at 4.74 g/t Au equivalent
83 metres at 2.7% comb. Pb+Zn+Cu
Incl. 28m at 5.3% comb. Pb+Zn+Cu
LWD 068 74 metres at 2.4% comb. Pb+Zn+Cu
Incl. 3m at 4.3% Cu
LWD 072 57 metres at 3.83 g/t Au equivalent
Incl. 32m at 5.76 g/t Au equivalent and 20m at 7.40 g/t Au equivalent
54m at 2.75% combined Pb+Zn+Cu
LWD 074 58 metres at 2.71 g/t Au equivalent
Incl. 13.7m at 4.47 g/t Au equivalent and 6.3m at 1.69% Cu

Table here.

BATU MAS DRILLING

Robust currently has two owner operated rigs working on site at Batu Mas and recent drill results have encountered precious metal mineralisation of potentially economic grades and widths significantly extending the identified zones of near-surface high-grade gold-silver mineralisation. These results have confirmed Robust’s beliefs that Batu Mas is demonstrating the potential to host a world-class gold discovery.

Batu Mas Gold-Silver Distribution

Gold-Silver Distribution - accordance with resistivity anomaly

Batu Mas Base Metals Distribution

Base Metal Distribution - accordance with resistivity anomaly

Batu Mas Drill Section South North

Batu Mas Drill Section South North

IP RESISTIVITY STUDY

Results from the recent 3D IP Resistivity survey carried out over the Lakuwahi Caldera have confirmed previous drilling results in that a large geophysical anomaly exists of gold-silver with an underlying zone of significant base metals. More importantly, the Resistivity Survey has demonstrated that the geophysical anomaly clearly links the Batu Mas and Batu Hitam Prospects. Given the positive results, Robust is now confident to move towards defining a maiden JORC resource from these two prospects alone.

Lakuwahi IP-Resistivity survey

Lakuwahi IP-Resistivity survey

BATU MAS GEOLOGY

Currently being updated

Hole # From (m) To (m) Au Equiv (g/t) Ag (g/t) Cu (%) Pb (%) Zn (%)
LWD015 0 41 2.98 100.0 N/A .37 N/A
LWD016 10 20 1.15 36.0 N/A 1.31 N/A
LWD017 22 49 2.99 47.7 N/A N/A N/A
33 38 4.52 5.0 N/A N/A N/A
42 49 5.32 168.7 N/A N/A N/A
LWD018 38.4 45.05 .88 34.44 N/A N/A N/A
LWD019 46.9 65 .73 10.84 N/A N/A N/A
LWD020 10 10.95 2.43 71.0 N/A N/A N/A
17.95 51 3.29 110.66 N/A N/A N/A
28 39 4.34 113.0 N/A N/A N/A
LWD021 0 2.45 3.59 29.24 N/A N/A N/A
27.35 47.95 1.83 45.7 N/A N/A N/A
LWD022 33 40 1.35 20.56 N/A N/A N/A
LWD023 22.5 24.5 1.7 46.0 N/A .93 .05
53.5 55.8 .25 10.0 N/A 1.49 .74
70.65 73 .4 4.0 N/A .8 1.53
89.75 90.15 .57 22.0 N/A 3.63 4.15
LWD024 23.75 36.25 3.03 107.0 N/A .49 .01
33.95 36.25 7.09 333.0 N/A .5 N/A
43.75 78 .34 8.0 .09 1.27 1.16
43.75 45.75 1.05 42.0 N/A 5.19 .03
50.5 72.75 .31 7.0 N/A 1.16 1.48
56.05 57.75 .68 24.0 N/A 4.7 3.48
LWD025 8.7 13.7 .19 8.0 N/A .25 1.1
22.7 24.7 1.74 44.0 N/A .9 .03
45.7 46.5 .79 6.0 N/A 1.13 .06
86.7 109.7 .92 23.49 .15 2.54 2.27
90.7 94.4 1.92 54.78 .33 8.76 4.47
92.1 94.1 2.99 89.0 .54 15.0 6.04
LWD046 0 23 6.7 67.0 .27 1.34 1.68
3 11 7.4 130.0 .4 2.05 3.42
6.5 19 .86 70.0 .46 2.24 2.94
8 12 2.71 84.0 .51 4.02 7.72
LWD048 0 61 4.5 61.0 .25 .32 N/A
40 70 .63 89.0 .44 .98 .38
40 55 N/A 168.0 .8 .71 .05
58 70 N/A 11.0 .05 1.42 .87
LWD049 8.5 49 1.97 47.0 N/A .48 N/A
38 54 .17 100.0 .2 1.43 .26
71 76 .46 11.0 .06 .38 1.95
LWD051 1.5 59 .18 90.0 N/A 1.09 N/A
3 30 .49 47.0 N/A N/A N/A
29 51 .29 159.0 .09 2.47 .02
26 41 .34 217.0 N/A 2.4 N/A
29 53 .17 155.0 N/A 2.4 N/A
LWD054 2 31 .6 26.0 N/A .19 N/A
LWD055 2 23 .91 33.24 N/A .39 N/A
2 12 4.74 16.1 .12 .73 N/A
28 111 .29 8.94 .18 1.17 1.39
70 98 .45 17.0 .25 2.15 2.9
LWD058 11 24 1.0 23.92 N/A N/A N/A
31 117 .21 4.0 .05 .56 .94
36 44 .65 16.0 .08 1.02 3.87
LWD062 1.5 84 1.59 34.0 N/A N/A N/A
22.5 34 3.07 114.0 N/A N/A N/A
59 72 3.72 44.0 N/A N/A N/A
LWD064 10 15 .99 38.4 N/A N/A N/A
37 49 1.48 54.08 .21 1.58 .31
73 86 .53 14.0 .06 1.01 1.49
LWD065 2 63.5 1.3 42.88 N/A N/A N/A
63.5 83.5 .46 12.75 .07 .98 1.35
157 160 .24 9.67 .06 1.11 4.45
LWD068 1 40 1.03 19.18 N/A N/A N/A
11 24 1.73 30.08 N/A N/A N/A
58 132.5 .31 7.72 .35 1.0 1.01
58 67 .74 19.67 1.73 1.83 .43
62 65 1.15 30.67 4.31 2.61 .7
84.5 90.5 .53 21.0 .45 2.8 2.45
LWD069 8 20 1.89 8.67 N/A N/A N/A
63 87 1.18 27.85 .15 .55 .53
68.5 153.5 .45 11.41 .05 .52 .73
119 122 .39 8.0 .04 1.59 2.95
LWD071 0 41 1.71 43.91 N/A N/A N/A
2 8 3.18 41.17 N/A N/A N/A
19.5 23.5 3.39 116.5 N/A N/A N/A
24.5 50 1.01 23.1 .29 1.06 .46
36 42 1.19 26.0 .71 1.29 .29
LWD072 0 57 3.83 39.64 N/A N/A N/A
21 53 5.76 64.65 N/A N/A N/A
26 51 6.7 78.67 N/A N/A N/A
29 49 7.4 84.84 N/A N/A N/A
49 103 .86 20.57 .09 1.79 .86
LWD074 0 58 2.71 23.16 N/A N/A N/A
40.5 54.2 4.47 74.12 N/A N/A N/A
54.2 60.5 1.35 54.24 1.69 .54 .23
LWD075 13 50 1.54 55.51 N/A N/A N/A
30 32 4.5 181.5 N/A 1.06 N/A
31 91 .63 19.82 .07 .74 .29
LWD076 0 2 N/A N/A .04 1.11 .82
8 12 N/A N/A .13 .32 1.0
LWD078 30 37 1.97 51.29 N/A N/A N/A
41 131 .17 2.82 .03 .59 .65
41 47 .46 12.83 .09 2.89 1.83
LWD079 2 4 .12 N/A .03 .74 .31
LWD081 18 146 .18 1.99 .06 .33 .65
19 21 .49 16.0 .1 1.49 3.18
80 81 .29 10.0 .1 3.76 7.11
97 100 .34 11.67 .13 3.09 4.67
107 109 .17 5.0 .17 1.05 3.43
LWD083 29 43 5.13 203.0 .26 1.84 3.26
34 37 11.97 556.0 .43 3.42 7.41
29 49 3.76 145.4 .24 1.55 2.72
41 43 2.43 62.5 .39 2.12 4.77
LWD084 83 103 .46 13.78 .43 2.71 5.52
86 97 .6 21.77 .62 4.21 9.44
86 91.5 .91 40.45 1.05 7.67 16.42

CONTENT IS BEING UPDATED PLEASE COME BACK SOON

Notes:

It is the opinion of Robust Resources Ltd that all of the minerals included in the metal equivalents calculations set out therein have a reasonable potential to be recovered. For further reference please see the metallurgical recovery test work results released in announcements to ASX on the 3rd and 24th June 2009. The information in the investor presentations, announcements and this web site that relates to Exploration Results, Mineral Resources or Ore Reserves is based on reports complied by Warrick Clent BSc, who is a Member of The Australasian Institute of Mining and Metallurgy and who has more than ten years experience in the field of activity being reported on. Mr Clent is an employee of the Company. Mr Clent has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Clent consents to the inclusion in the presentation of the matters based on his information in the form and context in which it appears.

† Gold Equivalent = gold assay + (silver assay / 60). Where the number 60 represents the ratio where 60 g/t Ag = 1g/t Au. This ratio was calculated from the five year average prices of gold and silver prices from 2004 to 14th January 2010 London market PM fix. (average Gold price is USD $657.47 and average Silver price is USD $11.19)

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