China National Building Material Stock Plunges After H1 Profit Warning

Shares of China National Building Material Co Ltd (CNBM) plunged 10.5% to HK$3.85 on Wednesday after the company issued a profit warning, signaling deepening distress in China's construction sector.

The stock sell-off pushed the company's shares to a 52-week intraday low of HK$3.77 before a marginal recovery.

Swing to a Loss

CNBM announced it anticipates an unaudited net loss attributable to shareholders of approximately RMB 890 million (about $122 million) for the six months ending June 30, 2026. This represents a stark reversal from the RMB 1.36 billion profit recorded during the same period in 2025.

The company attributed the negative forecast to a combination of factors impacting its core business lines:

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• Lower selling prices for its primary products, including cement, ready-mix concrete, and aggregates.
• Weaker sales volumes for ready-mix concrete and gypsum products.

Broader Industry Headwinds

The warning confirms persistent pricing pressure and structural weakness within China's building materials industry. It follows a series of negative financial reports from the company, including a full-year net loss in 2025 and a loss in the first quarter of 2026. Several of its subsidiaries have also recently reported year-on-year declines in revenue and profit.

These company-specific issues are compounded by a challenging macroeconomic backdrop. China's property market continues to struggle with the fallout from developer defaults and a credit crunch. Furthermore, gross domestic product data released Wednesday showed the world's second-largest economy grew less than analysts expected in the second quarter, further dampening investor sentiment.