FACTBOX-Mining projects in Madagascar

March 31 (Reuters) - The new army-backed president of Madagascar, Andry Rajoelina, said on Monday his administration was reviewing all contracts with foreign investors because the country was receiving too little revenue.

These are the major projects in the island's important mining sector:

RIO TINTO (RIO.L) (RIO.AX)

A subsidiary of British-based multinational Rio Tinto is leading Madagascar's most advanced mining project. It began producing ilmenite in January, 2009.

The project is known as QMM mineral sands and is situated just outside the southern town of Fort Dauphin.

Rio Tinto Iron & Titanium, part of the world's fourth-biggest diversified mining group, owns 80 percent of the development in the south of the Indian Ocean island. The Madagascar government owns the rest. The potential is 2.2 million tonnes per year.

Ilmenite is used in the manufacture of paint pigments and plastics industries.