Since 2026, driven by the dual forces of strengthened environmental policies and technological iteration, China’s metal anodizing processing industry has officially entered a high-quality development cycle characterized by parallel optimization of existing capacity and expansion of new growth areas. According to the “2026 Surface Engineering Industry Development White Paper” released by the China Surface Engineering Association, the overall market size of China’s metal surface treatment industry reached 485 billion yuan in 2026, with the output value share of metal anodizing-related processes steadily increasing. Green transformation and intelligentization have become the core directions of industry upgrading.

At the policy level, the European Union’s “Chromium Ban” has further tightened, while China’s nationwide push for “Zero-Waste Industrial Parks” and continuously lowered emission limits for heavy metals like hexavalent chromium are forcing traditional chromium-containing anodizing processes to exit the market. Data shows that in 2026, over 4,200 surface treatment enterprises in China were forced to shut down due to failure to meet volatile organic compound (VOC) emission limits. The industry concentration CR10 index surpassed 45%, marking the definitive end of the era of “scattered, disorderly, and polluting” operations. Leading enterprises with environmental qualifications and technological advantages are seizing market share opportunities. Simultaneously, the “Dual Carbon” goals are driving stricter energy consumption controls, with tightened per-unit energy consumption standards for the metal anodizing industry. The R&D and application of low-energy-consumption processes have become critical for corporate compliance and survival.

On the technological front, green anodizing technologies have achieved breakthroughs at scale. Processes such as chromium-free passivation, neutral anodizing, and wastewater recycling have become industry mainstream. Among these, comprehensive trivalent chromium/chromium-free passivation solutions are widely applied in the treatment of cast aluminum, die-cast aluminum, and other workpieces, achieving neutral salt spray test results exceeding 144 hours. These solutions not only meet international environmental standards like the EU’s RoHS but also achieve a 15%-20% reduction in comprehensive energy consumption. Micro-arc oxidation (MAO) technology is accelerating its penetration into civilian sectors, expanding from high-end aerospace applications to components like new energy vehicle battery trays and motor housings. The coating hardness and corrosion resistance provided by MAO are 3-5 times higher than traditional processes, promoting product lightweighting and extended service life downstream.

In terms of regional development, the industry exhibits a clustered pattern characterized by “Eastern China leading innovation, Central China undertaking transformation, and Western China achieving specialized breakthroughs.” Eastern coastal regions contribute 61% of the national total output value, with Guangdong Province ranking first with a scale of 112 billion yuan. Central China has shown significant results in industrial transfer, while Western China leads the nation in growth rate. Looking ahead, as environmental policies deepen and demand from high-end manufacturing grows, the metal anodizing industry will further transform toward an integrated “Materials + Processes + Services” model, with green technology, intelligentization, and customization becoming the core competitive advantages for enterprises.