Release: Oropa Limited: Drilling success at Sihayo 1 prospect

June 2, 2006 ? Oropa Limited is pleased to announce drilling success at the Sihayo 1 North prospect, located within the North Block of its 75% owned Pungkut Project, North Sumatra, Indonesia.

Drilling encountered shallow gold mineralisation in intensely silicified, hydrothermally altered volcaniclastic and limestone. Gold mineralisation at Sihayo 1 occurs as sub-horizontal zones of jasperoid silica, developed within Permian lithology (usually limestone) at the contact with younger Tertiary sedimentary cover. The cover is generally not mineralised.

The style of mineralisation at Sihayo 1 appears to be very similar in nature to, and may represent a direct extension of the Sihayo 1 North deposit.

Initial Drill results include:
SHDD067: 4m @ 4.09g/t Au from 3m (including 1 m @ 8g/t Au from 4m)
SHDD068: 5m @ 2.10 g/t Au from 7m
SHDD069: 6m @ 1.42g/t Au from 8m
SHDD070: 6m @ 1.72g/t Au from 8m
SHDD071: 9m @ 1.02g/t Au from 43m

These drill holes, completed on 100m x 100m centres, are designed to assess the lateral extent of hydrothermal alteration and the thickness of Tertiary sediment cover. The results confirm that the hydrothermal alteration zone persists over a wide area, and that the Tertiary cover is significantly shallower than initially thought.

The current drill programme at Sihayo 1 is ongoing and will test an area of approximately 800m x 500m, with infill and extensional drilling to be initiated depending on results.

Concurrently with the drilling programme at Sihayo 1, Oropa has two drill rigs operating at the Sambung prospect some 1 km to the south east of Sihayo 1. Drilling at Sambung is targeting high grade gold values encountered in earlier trenching and drilling.

Results from these programmes will be announced as they are received and evaluated. (end of release)