Aijun, formally Yongkang Aijun Industry & Trade Co., Ltd., is a manufacturer of vacuum flasks and stainless steel drinkware, serving global brands since 2008. Based in China, the company reports a 15,000-square-metre factory and a workforce of more than 150 employees. It offers OEM and ODM services, including customized designs and flexible minimum order quantities, and invites customers to request product samples.

Its drinkware range includes vacuum flasks, outdoor thermoses, car tumblers, sports bottles, coffee and beer mugs, insulated food jars, titanium mugs, and refrigerated cans. Aijun also makes coffee pots and other drink containers. Beyond drinkware, its products include grills, portable firewood stoves, camping cookware, and stainless steel tensile parts.

The company describes its manufacturing capabilities as supported by processing equipment and a technical team, and highlights customization, quality-control inspections, and customer service as part of its offering. Aijun states that its products are CE certified and that its quality processes are intended to meet international standards. Its broad catalog serves customers seeking customized drinkware and outdoor cooking products