The DAP wants the government to scrap the deal with one of Japan's biggest engineering firms, Ebara Corp, because its bad track record in the incinerator business.

Ebara holds the contract to design and build the controversial 1,500-tonne thermal incinerator plant proposed in Broga, near Semenyih.

Touted as the world's largest plant to use Japan's latest 'zero emission' gasification technology, the project is the first of several planned over the next few years to treat municipal solid waste.