BEIJING, June 11 (Reuters) -
* Aluminum Corp of China says it has entered into an agreement with the government of Guinea to develop the Boffa bauxite project in the west of the country.
* Agreement was signed in Conakry on June 8, the company, known as Chalco, said in a statement to the Hong Kong stock exchange on Sunday.
* Chalco Guinea Company will be granted mining licenses for the Boffa North and Boffa South blocks for 15 years, renewable by 15 years on expiry.
* Project holds around 1.75 billion tonnes of bauxite, a rock refined to produce alumina, which is used to make aluminum.
* Annual bauxite output seen at 12 million tonnes, with production starting by end of 2019; output will go to Chalco alumina refineries in Shandong and Guangxi.
* Chalco must transfer 15 percent of shares in Chalco Guinea Company to the Guinea government within 10 business days; Guinea has option to increase interest up to 35 percent.
* Chalco said last month it would invest up to $163.8 million in the project; investment will be split among mining, ports and lightering operations. (Reporting by Tom Daly; Editing by Biju Dwarakanath)