CHONGQING, May 16 (Xinhua) -- A major trade and investment fair in southwest China's Chongqing Municipality has seen a record number of participants.

The West China International Fair for Investment and Trade, which opened on Thursday, drew over 70,000 domestic and overseas participants this year.

The guests represent more than 300 Fortune 500 enterprises and 4,000 others from 95 countries and regions around the world.

A total of 132 deals have been signed, worth 337.5 billion yuan (about 49.6 billion U.S. dollars).

The contracts are in new materials, new energy vehicles, bio-pharmaceuticals, smart manufacturing, cloud computing, and ecological conservation.

The fair will last until May 19.