Raipur, May 30: Korba-based Bharat Aluminium Company Limited (Balco) has successfully produced a high grade of mixed metal, AA 7075, used in the defence and space technology equipment.

The aluminium major ? now owned by the London-based Vedanta group has become the only producer of the AA 7075 grade alloy in the country.

?It was a big breakthrough for the company as other major national aluminium producers (including Hindalco) have failed to produce the alloy despite trying a number of times,? said the company?s chief of corporate communication, Deepak Pachpore.

The trial for producing the high-grade alloy was conducted on the demand of the Indian Space Research Organisation.

Company officials said the AA 7075 grade of the alloy is in high demand across the world.