Zhejiang Cayi Vacuum Container 

Founded in 2004 and based in Zhejiang, China, this company specializes in manufacturing and distributing a wide array of drinkware and food storage products. Its extensive catalog includes various stainless steel items like water bottles, tumblers, mugs, travel bottles, wine cups, vacuum flasks, and children's bottles, as well as straw tumblers. While primarily serving the Chinese market, the firm also actively exports its goods to numerous international destinations, including the United States, South Korea, Brazil, Norway, the Netherlands, Japan, and Canada, alongside other countries throughout Europe, the Americas, and East Asia.