BBMG (02009) surged over 11% in early trading, reaching a high of HK$0.95. As of press time, the stock was up 8.24% to HK$0.92 with a trading volume of HK$117 million.

Recently, BBMG released an investor relations activity record. In response to investor concerns, the company stated that regarding its new building materials business operations, in the first half of 2025, the company actively promoted the implementation of high value-added market applications and the overseas expansion of new building materials. In terms of high value-added market applications, the energy-saving insulation company developed "Yu Cotton" products for ecological restoration applications, which were successfully applied to the Zhaikou Mine restoration project covering 50,000 square meters, with a product gross margin of 45.6%, representing a 40% improvement over ordinary rock wool products. For new building materials overseas expansion, in the first half of the year, mineral wool board exports reached 57 million yuan, with new major engineering projects of 200,000 square meters added in India, Hong Kong, and Singapore.

Tianfeng Securities Co.,Ltd. pointed out that current glass varieties are trading below the 50th percentile of the past three years, while cement is higher than glass. Among these, China National Building Material, Conch Cement, and BBMG are around the 80th percentile level of the past three years, China Resources Building Materials Technology is relatively lower, while West China Cement and Huaxin Cement are relatively higher. This rally is mainly driven by undervalued glass varieties showing relatively greater elasticity. With the current building materials sector's anti-involution efforts, capacity reduction is expected to accelerate, driving improvements in industry competitive dynamics. Combined with further improvements in the funding environment, the firm continues to favor undervalued building materials stocks.