MOSCOW, November 18. /TASS/. Russia’s United Engine-building Corporation (a part of Rostec) and China National Aero-Technology Import & Export Corporation (CATIC) have agreed to jointly modernize the RD-93 turbojet engine developed by Russia’s St. Petersburg-based company Klimov.

An agreement to this effect was signed at the international aerospace show Air China-2014 that ended in China’s Zhuhai on Monday, the press service of the United Engine-building Corporation said.

“The agreement provides for the modernization of the engine’s power unit to augment thrust and for the organization of sales of these engines in China,” the press service said.

The Russian company and CATIC have a contract for the delivery, design supervision, technical maintenance, post-warranty servicing and assistance in the organization of capital repairs of RD-93 engines that are installed in Chinese FC-1 (JF-17) fighters.

Earlier, TASS learnt at the Air China show that a contract on the delivery of 100 such engines by 2016 had been signed earlier this year within the framework of a previous call.

In 2005, Russia’s biggest arms trade Rosoboronexport signed a deal with China on the delivery 100 RD-93 engines for FC-1 fighters, which was executed in 2010, and an option agreement for the supplies of 400 more engines of that type. Now, the delivery of the first 100 units under this agreement begins.

RD-93 engines are manufactured by the Moscow-based Chernyshev Machine-building plant.

A military diplomatic source told TASS on the sidelines of the Air China show that RD-93 engines were also installed in China’s stealth fighter of the fifth generation J-31 that had taken part in sow flights.