The Moses Lake Chamber of Commerce holds its annual Business Expo today between 4:00 p.m. to 7:00 p.m. in the Commercial Building at the Grant County Fairgrounds. The event gives people a chance to network with central Washington businesses and industry representatives. It is free to attend and open to the public. This year’s expo is themed as “The New Roaring 20s” and attendees are encouraged to dress in 1920s attire.