The cost advantage of Chinese galvanized sheets is significant, squeezing international competitors. The FOB price of hot-dip galvanized coils exported is 18% to 22% lower than that of products from Japan and South Korea. According to the data from the China Iron and Steel Association in 2023, the production cost per ton of the mainstream specification DX51D+Z 120g/m² zinc coating product is approximately 520 US dollars. Relying on the high-speed rolling efficiency of 32 meters per minute of the continuous hot-dip galvanizing production line, the monthly production capacity of a single factory has exceeded 150,000 tons. The average export price to Southeast Asia in the first quarter of 2024 was only 598 US dollars per ton, 210 US dollars lower than that of domestic products in the European Union. A typical case is that in the procurement of the expressway project in Ho Chi Minh City, Vietnam, Baosteel’s galvanized sheet bid was 26% lower than that of POSCO, winning a 60,000-ton supply contract. The total project cost was saved by 15.6 million US dollars.
The coverage rate of international standard certifications has been continuously increasing. The proportion of Chinese steel mills that have passed the EU EN10346 certification has reached 73%. The salt spray test life of hot-dip galvanized sheets of industry leaders such as Angang Steel Co., Ltd. has exceeded 1,200 hours. The zinc coating adhesion test shows no peeling under a bending radius of 0.5T, far exceeding the 480-hour requirement of the ISO 1461 standard. The 2023 TUV Rheinland certification report shows that the standard deviation of zinc coating uniformity of Galvanized steel plates in China’s top ten steel mills is controlled within ±8g/m², and the actual average detection value of 120g zinc coating products reaches 126.7g/m². The export volume of products certified by the Australian AS 1397 standard increased by 34% year-on-year, supporting the proportion of exports to Australia to rise from 12% in 2020 to 21% in 2023.
Environmental compliance is accelerating its improvement, with the detection rate of restricted substances under the REACH regulation dropping to 0.7%. According to the 2024 special inspection by the Ministry of Ecology and Environment, the installation rate of hexavalent chromium treatment facilities in galvanizing enterprises has increased from 45% in 2019 to 96%, and the wastewater discharge per ton of product has been reduced to 1.2 cubic meters (a 68% decrease compared to 2018). The stress tests of the EU’s Carbon Border Adjustment Mechanism (CBAM) show that demonstration factories powered by photovoltaic power (such as the Shougang Jingtang base) have reduced carbon emissions per ton of galvanized sheet production to 1.1 tons, which is 42% lower than the industry average. The carbon tax cost of products exported to the EU in 2025 is expected to be no more than 18 US dollars per ton.
Trade risks need to be closely guarded against. In 2023, the volume of exported galvanized sheets returned due to deviations in zinc coating thickness reached 42,000 tons. Data from the US Department of Commerce shows that the anti-dumping duty rate on Chinese galvanized sheets fluctuates within the range of 7.8% to 241%. In the 2022 INMETRO certification spot checks conducted by Brazil, the zinc coating thickness of 14 batches of Chinese products failed to meet the standards (the test value was 15g/m² lower than the claimed value). The key countermeasure is to cooperate with supply chains that have AEO advanced certification. The customs inspection rate of such enterprises is only 0.8% (the industry average is 6.3%). For instance, Shagang Group has shortened the container turnover time to 18 hours (40% faster than its peers) through a digital traceability system, ensuring that the shipping schedule delay rate is less than 1.2%. Ultimately, choosing a Galvanized steel plate supplier equipped with fully automatic quality inspection equipment can control dimensional tolerances within ±0.3mm (±0.5mm as per the national standard), and reduce the overseas warranty claim rate of products to less than 0.25%.