Cavico is to undertake more than 4,500m of tunnelling in Lao PDR and Vietnam as key parts of contracts worth a total of US$16M.

In Lao PDR, a subsidiary of the group will use a TBM to excavate a 1,000m long tunnel and a 45m deep dismantling shaft for the Theun HinBoun expansion project. Cavico said the construction work is expected to be completed in 24 months.

The contract was awarded by Italian contractor Cooperativa Mutatori e Cemenisti – CMC di Ravenna, and is valued at US$6.2M.

The company also recently won a US$9.8M job on a hydropower project, Song Giang 2 in Vietnam, to undertake a package of tunnelling works. The entire project is valued at approximately US$50M.

The tunnelling package includes a 3,900m long headrace, two sub tunnels of 650m in total length, and a 42m high surge tank. Construction work is to be completed within 20 months.