Dear Valued Customers, Partners and All Employees, As the Chinese Lunar New Year (Spring Festival) approaches, we would like to inform you of the upcoming holiday schedule for HACST Heat Transfer Technology (Shandong) Co., Ltd. Holiday Period: February 15, 2026 (Sunday) – February 21, 2026 (Saturday) During this time, our office, production facilities, and customer service departments will be closed to allow our staff to celebrate the festival with their families. Work Resumption: We will officially resume normal operations on Monday, February 23, 2026. For any urgent matters during the holiday period, please contact your usual account manager via email

Date: 2025-11-22 Although HACST is known mainly as a manufacturing company specializing in closed circuit cooling towers, evaporative condensers, and heat-exchange equipment , we also consider social responsibility an essential part of our long-term development. On November 22, representatives from HACST participated in the annual “Little Sun Charity Fund” support activity at Anguang City Special Education School, coinciding with the 34th International Day of Persons with Disabilities. A Practical Public Welfare Activity Focused on Real Needs The event was jointly organized by local authorities including the Disabled Persons’ Federation and the Women’s Federation. Unlike purely ceremonial charity activities, this initiative

Date: 2025-11-19 At HACST®, product reliability always begins on the workshop floor. To further reinforce manufacturing discipline and strengthen the quality behind our closed circuit cooling towers, evaporative condensers, and industrial heat exchangers , the company recently organized a Welding Skills Competition at our main production facility. Practical Training Based on Real Production Needs Unlike a typical contest, the event was designed directly around welding tasks used in HACST® equipment manufacturing. Processes such as stainless-steel coil welding, multi-position structural welding, and frame assembly were selected because they influence long-term performance, heat-transfer efficiency, and corrosion resistance across our product lines .

We are proud to announce that our Closed Circuit Cooling Tower has been re-certified by the Cooling Technology Institute (CTI) in 2025. This re-certification confirms once again that HACST Cooling consistently delivers cooling equipment that meets international standards for thermal performance, reliability, and energy efficiency. We first obtained CTI certification several years ago, and since then, we have continuously upgraded our designs, testing procedures, and production quality to ensure long-term performance stability. The successful renewal of our CTI certification in 2025 reflects our commitment to innovation, product excellence, and customer trust. As a professional closed circuit cooling tower manufacturer, we

  We are pleased to announce that our company has successfully passed the recent ISO triple management system certifications (ISO 9001, ISO 14001, and ISO 45001) with zero non-conformities raised by the audit team.

Congratulations to the company on obtaining three new utility model patents! This is a testament to the company’s technological strength. May we build on our success, stride forward on the path of technological innovation, and create more glories!