Hindustan Copper has reportedly shortlisted three conglomerates for two separate Rajasthan underground mine work bids.

The proposed projects involve deepening of underground mines and ore handling at Khetri and Kolihan. While the Rs 90 crore Khetri project involves deepening of shaft by 300 mtrs to 600 mtrs, the Kolihan work entails sinking of a new underground shaft with a depth of 300 mtrs and development of two levels at a cost of Rs 100 crore. Khetri is estimated to have 24 million tonne of copper bearing ore reserves, while Kolihan estimates stand at 20 million tonne.

Liaoning Dongmei Capital Construction of China is the partner in the consortium, led by Maheshwari Mining for Khetri and Kolihan mines. There is a second Chinese firm, Sichuan Mining Machinery, in the Maheshwari's consortium for Kolihan. China Coal Mine Construction Group Company has partnered with Hyderabad based lead Delta Construction Systems for both the project bids. Sriram EPC has teamed up with the Shandong Gold Group for the two projects.

The final bid documents have been issued to the shortlisted companies. The last date for submission of bids is 21 January 2011.