LIMA, Dec 4 (Reuters) - Peruvian mining company

Buenaventura, a major precious metals producer, has approved a

set of debt measures including a bond issuance of $650 million,

the firm said in a statement on Wednesday.

The miner added that shareholders had approved what it

called a "repurchase or rescue operation" of currently active

bonds.

Peru is one of the world's top mining economies,

especially for key industrial metal copper, with mineral sales

contributing a large share of the country's export revenue.