International Labor Day, also known as "May 1st International Labor Day" and "International Workers' Day" (International Workers' Day or May Day), is a national holiday in more than 80 countries around the world. Set on May 1 every year, it is a festival shared by working people all over the world. MGG group, one of the leading roll on bottle manufacturers in China, the first International Workers' Day Vocational Skills Competition was held in the factory, which enriched employees' amateur cultural life, strengthened communication and cooperation among employees, enhanced teamwork awareness, and enhanced corporate cohesion.