Nanchang Zhengding Technology Development Co., Ltd. has designated Mingke as its exclusive supplier of ultrasonic powder packaging machines. Founded in 2010, Nanchang Zhengding Technology Development Co., Ltd. is a key leading enterprise specializing in the research and development, production, and sales of food-specific heat packs and self-heaters. With a strong professional team in core technology and strong strength, it has become a leader in China's food heating agent industry. After years of hard work and continuous innovation, it has successfully developed and produced a variety of food self-heating agents and self-heaters of various specifications. Its advanced technology in fireless food self-heating has made significant breakthroughs and has obtained multiple national patents. It has successfully surpassed similar products in Japan and the United States and is widely used as a new generation of safe, environmentally friendly, and convenient energy source. Zhengding's food heat packs have been the best-selling product for five consecutive years and are now exported to the United States, the United Kingdom, Japan, South Korea, Hong Kong, Taiwan, South Africa, Canada, Belgium, Turkey, Southeast Asia, and the Arab world. 

Its collaboration with Mingke began in 2011 when Zhengding's general manager, Min, visited the company to inspect and test the machines, and immediately signed an order and began their partnership. Since then, all packaging machines have been purchased from Mingke due to its quality and service. 

In 2014, there were some small incidents when Min purchased three machines from another supplier at a lower price, but the machines turned out to be unstable and the service was poor. Min continued to choose Mingke due to its quality and excellent service, and has since designated them as their sole supplier of ultrasonic powder packaging machines. Their partnership has now exceeded 100 units of equipment.