The two countries have been planning to build the pipeline through the Indian Ocean to relieve China's dependency on the Straits of Malacca, through which about 80% of China's oil imports are transported. The China National Oil & Gas Exploration & Development Corporation and Myanmar's state-owned oil companies signed a contract in January covering exploration rights in three deep-water areas in Myanmar, and China National Petroleum Corp also signed a contract with Myanmar's government in January covering oil and gas exploration in the country.