By reporter Mao Lijuan: On July 2, the three-day 9th Guangzhou International Refrigeration and HVAC Equipment Exhibition concluded at Zone C of the Canton Fair Complex. Mayer Technology, a subsidiary of Hong Kong-listed company Huiyuan Cowins (01116.HK), showcased its comprehensive PCM phase-change energy storage solution at Booth G23/25, demonstrating how innovative technology drives the industry's low-carbon transformation.