Yunnan Tongwei High-Purity Silicon Co., Ltd., established in April 2020, is a high-tech company focused on the research, development, production, sales, and technical consulting of high-purity silicon, including polysilicon, monocrystalline silicon, and electronic-grade polysilicon. The company is dedicated to advancing clean energy solutions. The first phase of its 50,000-ton high-purity silicon project has been successfully launched and is now fully operational.

In 2021, Hope Deepblue provided the first phase of the Yunnan Tongwei project with a steam LiBr absorption chiller and four hot water LiBr absorption chillers, designed to support both the process cooling and air conditioning needs. These units have been running smoothly since their commissioning.

Over the course of three years, the user and our sales and after-sales teams have maintained an ongoing and productive dialogue. This collaboration has involved keeping each other updated on product upgrades, operational guidance, unit maintenance, and system optimization. Our sales team played a key role in facilitating communication and feedback, which helped ensure quick and effective coordination with the after-sales team. Together with the technical and production departments, we implemented several improvements, such as optimizing energy-saving plate heat exchangers, upgrading software, and fine-tuning PID settings. Additionally, we provided round-the-clock online monitoring services, tailored energy-saving plans based on real-time data from the site, and addressed any issues through remote assistance or on-site visits, ultimately earning the user's complete trust and appreciation.