Chinese state-owned energy giant China Power Investment Corporation plans to invest six billion dollars to develop bauxite production in Guinea, a senior executive said here Saturday. China Power Investment \"intends to invest more than six billion dollars in bauxite production in the Boffa region over the coming years\", vice chairman Yu Dehui said on Guinean state television. The Chinese company official was leading a delegation that met with Guinean President Alpha Conde. Yu Dehui said the facilities his group plans to build would produce up to eight million tonnes of bauxite -- the main source of aluminium -- a year and would employ tens of thousands of Guineans. Guinea is the world\'s leading bauxite exporter.