Prepainted steel coils are used in many things people see and use every day, like buildings, such as roofing, wall cladding, and curtain walls, cars, including body panels and interior parts, and home appliances, like fridges, washing machines, and air conditioners.
China has become one of the top places to make this kind of steel, accounting for over 50% of the global prepainted steel coil production volume. It’s best for companies to focus on strong coatings with high adhesion and corrosion resistance, steady quality meeting international standards like ISO, ASTM, and JIS, and fast delivery supported by well-connected logistics networks.
Company Name | Founded |
Baosteel Co., Ltd. | 1978 |
HBIS Group Co., Ltd. | 2008 |
ZhaojianSteel | 2010 |
Yehui (China) Steel Co., Ltd. | 1996 |
Ansteel Group Corporation | 1916 |
Shandong Guanzhou Coated Steel Co., Ltd. | 1985 |
Jiangsu Steel Group Co., Limited | 1998 |
Wuhan Iron & Steel Company (WISCO) | 1958 |
Maanshan Iron & Steel Company (Masteel) | 1953 |
Shougang Group | 1919 |
Baosteel Co., Ltd.
Year Founded: 1978
Main Products:
- Hot Rolled Steel Sheets
- Cold Rolled Steel Sheets
- Galvanized Steel Sheets
- Prepainted Steel Sheets
- Electrical Steel Sheets
- Tin Plate and TFS
- Heavy Plates
- Stainless Steel Products
Baosteel Co., Ltd. is a very large steel company located in Shanghai, with additional production bases in Jiangsu, Guangdong, and other provinces. It is a world leader, especially when it comes to making prepainted steel coils, holding a 15% share of the global market.
The business got its start way back in 1978. It was part of a big push by China’s leader at the time, Deng Xiaoping, to help make the country more modern, as part of the national strategy to develop key industries. From that point on, it grew into a key part of China’s steel industry, driving technological innovation in the sector.
In 2016, things got even bigger. The company joined with Wuhan Iron & Steel to create a new company—China Baowu Steel Group. This merger made them the biggest producer of steel in the world based on the amount they make, with an annual steel output exceeding 100 million tons.
A huge part of their business is making those prepainted steel coils. These are simply steel sheets that get a nice coat of paint by using advanced roller coating technology before they ever leave the factory, ensuring uniform thickness and smooth finish.
So why is that a big deal? Well, these painted coils are used in almost everything. You can find them in buildings (residential communities and commercial malls), cars (passenger cars and commercial vehicles), and even kitchen appliances like your fridge.
The paint job does more than just look good. It helps the steel fight off rust, resists salt spray for over 1,000 hours and stops the color from fading, maintaining 90% color retention after 10 years of outdoor use. This makes the final products last a whole lot longer, reducing maintenance costs for end-users.
HBIS Group Co., Ltd.
Year Founded: 2008
Main Products:
- Hot Rolled Strip Coils
- Cold Rolled Steel Sheets
- Galvanized Steel Plates
- Color Coated Steel Coils
- Aluminum Zinc Coated Steel Coils
- High Strength Steel Bars
- Wire Rods
- Heavy Plates
HBIS Group is a big steel maker in Shijiazhuang City, Hebei Province, with a total asset scale of over 300 billion yuan. It was born in 2008, when two other steel companies (Handan Iron and Steel Group and Tangshan Iron and Steel Group) decided to team up. Just like that, it became one of China’s biggest steel companies, ranking among the top 3 in the country by output.
But its story really goes back much further. One of those original companies (Handan Iron and Steel Group) started way back in 1943. So, they have tons of experience making good steel, with a history of over 80 years in the industry.
Today, their factories are very modern, equipped with intelligent monitoring systems to control production parameters in real time. They have seven special production lines that are used only for color-coating steel, covering different widths (from 900mm to 1,250mm) and thicknesses (from 0.12mm to 1.6mm). With those lines running at full steam, they can make 1.3 million tons of prepainted steel a year, meeting the needs of both domestic and international markets.
Hesteel New Material, a smaller company that HBIS owns, is a huge producer of this kind of steel on its own, with an annual prepainted steel capacity of 500,000 tons. This makes the parent company a real power in China’s color steel market, with a total market share of around 8%.
You can find their products all over the world—in more than 40 countries, in fact, including the United States, Germany, Australia, and Brazil. This shows that people everywhere trust the quality of what they make, as their products have passed international certifications like CE and AISI.
Zhaojian Steel
Year Founded: 2010
Main Products:
- Cold-Rolled Steel Sheets
- Galvanized Steel Sheets
- Aluminum Zinc Plates
- Color-Coated Steel Sheets
- Building Materials Steel Plates
- Household Appliances Steel Sheets
- Film Faced Plywood Products
Zhaojian Metal Product Co., Ltd., better known as Zhaojian Steel, is a relatively recent business based in Bazhou City, Hebei Province, which is within the Beijing-Tianjin-Hebei urban agglomeration. It started up in 2010. The company was launched by the Jinghua Group (a large-scale enterprise with businesses in steel, logistics, and real estate) to focus on making high-grade steel items, targeting mid-to-high-end markets.
Where it’s located gives it a strong edge. Being set between Beijing and Tianjin means it’s close to both ports (Tianjin Port and Caofeidian Port, within 200km) and major roads (National Highway 106 and Beijing-Shanghai Expressway), making shipping in either direction pretty efficient—domestic delivery takes 1-3 days, and international shipping takes 15-30 days.
A lot was spent on setting up a top-tier production site—total investment exceeded 5 billion yuan. The facility can push out close to 3.2 million tons of steel items yearly, including cold-rolled, galvanized, and color-coated steel products.
Out of that, about 800,000 tons are color-coated materials, with a product qualification rate of over 99.5%. That level of production makes the company a serious force in China’s painted steel market, especially in the North China region.
Its main output—color-coated sheets—goes to two industries more than others. One is construction, accounting for 60% of its sales (roofing, wall panels, and steel structure houses). The other is appliances, making up 30% (shells of microwaves, washers, and water heaters).
Put simply, some of their steel might end up as roofing or siding on a structure, such as residential communities in Hebei and Shandong provinces.
It also might be part of the exterior shell on a kitchen appliance like a microwave or washer, supplied to well-known appliance brands like Midea and Haier. Having several kinds of customers gives the company a stable business base, reducing risks from single-industry fluctuations.
What they aim for is high quality and lower environmental harm. Their setup uses fast, power-saving equipment (energy consumption per ton of steel is 15% lower than the industry average), and they have installed waste gas and wastewater treatment systems, meeting national environmental protection standards. This helps them stay competitive in their field.
Yehui (China) Steel Co., Ltd.
Year Founded: 1996
Main Products:
- Prepainted Galvanized Steel Coils (PPGI)
- Prepainted Galvalume Steel Coils (PPGL)
- Galvanized Steel Coils
- Galvalume Steel Coils
- Corrugated Roofing Sheets
Yehui (China) Steel Co., Ltd. operates out of Shandong Province, one of the top places in China for steel manufacturing (accounting for 20% of China’s total steel output). It started back in 1996 and has since built its name around coated steel, with a brand reputation in both domestic and Southeast Asian markets.
The company mainly deals with steel sheets that get both a protective coat (zinc or aluminum-zinc) and a layer of paint (polyester, PVDF, etc.). That includes zinc-coated galvanized steel (PPGI) and galvalume (PPGL), which mixes aluminum with zinc—PPGL has 3-5 times better corrosion resistance than PPGI.
Thanks to several modern lines in the plant (6 coating lines and 4 slitting lines), Yehui rolls out more than 2 million tons of coated steel each year, including 1.2 million tons of PPGI/PPGL. This level of production puts it among the country’s biggest names in painted steel, ranking top 6 in China.
Their steel isn’t just used locally—70% of products are sold in domestic markets (East China, South China), and 30% are exported. Projects in Southeast Asia (Indonesia, Vietnam), Africa (Nigeria, South Africa), and Europe (Poland, Romania) also use it for building walls and roofs, such as residential complexes in Jakarta and shopping malls in Lagos. That kind of reach shows people trust what they make, with a customer retention rate of over 85%.
By putting all their energy into one specialty (coated steel), they’ve gotten really good at turning out durable coatings with lots of color and finish options (over 100 color choices, including RAL and Pantone color systems). That strong focus keeps them in demand across the building industry, especially for outdoor projects.
Ansteel Group Corporation
Year Founded: 1916
Main Products:
- Hot-Rolled Strip Coils
- Cold-Rolled Steel Sheets
- Galvanized Steel Coils
- Color Coating Plates
- Wire Rods
- Thick Plates
- Heavy Rails
- Special Steel Products
Ansteel Group Corporation is a true giant in the Chinese steel industry, with annual revenue exceeding 200 billion yuan. It is located in Anshan, Liaoning Province, and its history goes all the way back to 1916, making it one of the oldest steel enterprises in China.
It became the nation’s first large steel factory in 1948, after the founding of the People’s Republic of China, and played a key role in supporting the country’s industrialization. Because it has been around for so long, it is sometimes called “the cradle of China’s iron and steel industry,” training a large number of technical talents for the sector.
A huge merger in 2021 with Benxi Steel (another leading steel company in Liaoning) made the company even bigger. This move created the third-largest steelmaker in the whole world, with an annual steel output of over 70 million tons.
Within its giant business, its prepainted steel products are known as color coating plates. These plates are made using very modern and advanced ways—adopting German Siemens automation control systems and Japanese Nippon Paint raw materials, ensuring consistent quality.
What are they used for, you ask? These plates end up in all sorts of things. These products can be found in cars supplied to FAW and SAIC, and also include buildings, high-speed railway stations, and airports, as well as everyday home appliances like those from Hisense and Gree.
The company’s location in Northeast China is a big plus. This area has plenty of raw materials like iron ore that are needed to make steel. Anshan is one of China’s major iron ore-producing areas. Ansteel even has its own mines (with annual iron ore output of 20 million tons), which means it has a steady supply of what it needs, reducing reliance on imported raw materials.
The quality of its steel is very well known. You can find Ansteel products in some of China’s most famous projects, like the “Bird’s Nest” National Stadium that was built for the 2008 Beijing Olympics, as well as the Hong Kong-Zhuhai-Macao Bridge.
Shandong Guanzhou Coated Steel Co., Ltd.
Year Founded: 1985
Main Products:
- Cold Rolled Steel Sheets
- Galvanized Steel Sheets
- Color Coated Steel Sheets
- Prepainted Steel Coils
- Rare Earth Permanent Magnetic Products
- Self-Propagating Ceramic Composite Products
Shandong Guanzhou Coated Steel Co., Ltd. is a high-tech steel company that’s been in business since 1985, recognized as a “National High-Tech Enterprise” by the Chinese government. It’s located in a place called Guan County, Shandong Province, which is known as “China’s Coated Steel Town.” Over the years, it has grown into a major maker of steel that does everything from research (with a R&D team of 50+ engineers) to sales (owning 20+ sales offices nationwide).
Its home base in the province of Shandong is very important. This location puts it right in the middle of one of China’s main areas for making prepainted steel coils, with convenient access to raw material suppliers (iron ore and coal) and downstream markets (East China and North China).
The company is pretty impressive. It’s one of the few in China that can actually make all three of the main types of coated steel: galvanized steel, galvalume steel, and prepainted steel—realizing a complete industrial chain from base material to finished product.
Its factories can produce 1.3 million tons of galvanized sheets every year, and they can also make another 1.1 million tons of color-coated sheets each year. This large amount of production makes them a very important player in the industry, with a 5% share of China’s prepainted steel market.
The company’s “Guanzhou” brand is very well known in the area, with a brand value of over 1 billion yuan. It has even won awards for its product quality, such as “China Famous Brand” and “Shandong High-Quality Product.” Their prepainted steel is made on seven different lines, so they can offer many kinds of coatings for different uses—for example, PVDF coating for coastal buildings and polyester coating for indoor appliances.
It has also earned a lot of respect from the business world. The company is often on lists of the top private companies in its province (ranking top 50 in Shandong’s private manufacturing enterprises) and in the entire country (listed in China’s Top 500 Private Enterprises).
Jiangsu Steel Group Co., Limited
Year Founded: 1998
Main Products:
- Stainless Steel Bars
- Stainless Steel Wire
- Stainless Steel Tubes
- Stainless Steel Plates and Coils
- Spring Wire Products
- Wire Rope Products
Jiangsu Steel Group Co., Limited, which started in 1998, is a different kind of company compared to other prepainted steel-focused manufacturers. It’s based in Jiangsu Province, an area that is famous for making stainless steel (accounting for 35% of China’s stainless steel output). This company is a specialist—it focuses almost entirely on stainless steel products, with stainless steel accounting for 90% of its total output.
This focus makes it different from the other companies that mostly make regular prepainted steel coils (which are mainly based on carbon steel). Instead, Jiangsu Steel Group focuses on value-added stainless steel products, targeting high-end markets.
So, is it involved in prepainted steel at all? Yes and no. While it doesn’t make the usual carbon steel prepainted coils, its work is still related to colored steel products. The company’s stainless steel sheets can be given all sorts of special finishes, like a polished shine (mirror finish, brushed finish) or different colors (using vacuum plating or electrolytic coloring technology). The way they do this is similar to the process for painting steel, as both aim to improve aesthetics and corrosion resistance.
It makes a very wide variety of stainless steel items—over 500 product specifications. We’re talking about everything from tiny wires (0.1mm diameter) to thick plates (100mm thickness). These are used in many important industries, such as food, medicine, and energy, as stainless steel meets the high hygiene and corrosion resistance requirements of these sectors.
It’s just an important difference to know. If you were looking for a huge order of standard prepainted steel (carbon steel-based), another company might be a better fit. This group is a master of the stainless steel world, with a strong reputation in the global stainless steel market—its products are exported to 30+ countries, including the EU, the US, and Japan.
Wuhan Iron & Steel Company (WISCO)
Year Founded: 1958
Main Products:
- Hot Rolled Coils and Sheets
- Cold Rolled Coils and Sheets
- Galvanized Sheets
- Color Coated Sheets
- Tinned Sheets
- Silicon Steel Sheets
- Heavy Sections
- Wire and Rod Products
Wuhan Iron & Steel Company, also known as WISCO, is a very important steelmaker from Wuhan, Hubei Province, and a key enterprise in China’s central region. It was set up in 1958, with the support of the Soviet Union during China’s first five-year plan, marking an important milestone in China’s steel industry development.
It was the very first giant iron and steel factory that was built after the founding of the People’s Republic of China, with a designed annual output of 3 million tons of steel at the time. It played a crucial role in supporting the industrialization of central China.
Its location on the Yangtze River is great for business. This spot allows for easy travel via waterway to ship steel to markets all across the country—products can be transported to East China (Shanghai, Nanjing) and South China (Guangzhou, Shenzhen) via the Yangtze River, reducing transportation costs by 20% compared to land transport.
WISCO makes hundreds of different kinds of steel products, with a total annual output of over 40 million tons. A key part of that business is its color-coated sheets, which account for 10% of its total output (about 4 million tons per year).
These prepainted steel sheets are used to make things like building materials (steel structure workshops and exhibition halls) and parts that go into cars (light truck bodies) and home appliances (air conditioner outdoor units). The company uses modern production lines (imported from Italy’s Fata Hunter) to make sure the paint has a high-quality finish—paint thickness deviation is within ±2μm.
A really big event happened for the company in 2016. It joined with Baosteel to create China Baowu Steel Group. This move formed the biggest steel company in the world, with WISCO becoming a core subsidiary of China Baowu. For WISCO, it meant it could use even better technology (sharing Baosteel’s R&D resources) and expand its market coverage.
Over its long history, the company has always worked to improve its products. It has obtained 200+ patents related to coated steel, and its prepainted steel has been used in many large building projects all over China, such as the Wuhan Greenland Center and the Changsha South Railway Station.
Maanshan Iron & Steel Company (Masteel)
Year Founded: 1953
Main Products:
- Steel Plates
- Hot and Cold-Rolled Thin Plates
- Galvanized Plates
- Coil-Coating Plates
- Medium Plates
- Section Steel Products
- Wire Rods
- Train Wheels and Components
Maanshan Iron & Steel Company, which most people just call Masteel, is a well-known maker of prepainted steel, with a history of over 70 years. It is located in Ma’anshan, Anhui Province, just 40km away from Nanjing, making it part of the Yangtze River Delta economic circle.
The company first got its start in 1953, as one of China’s key construction projects during the first five-year plan. It sits right on the Yangtze River, a great spot that makes it easy to ship products to customers—its own port has a handling capacity of 10 million tons per year. Masteel was also one of the first Chinese companies owned by the state to be listed on a stock exchange back in the early 1990s (listed on the Shanghai Stock Exchange in 1993), pioneering the marketization of state-owned steel enterprises.
Its type of prepainted steel is called coil-coating plates, which are produced using a continuous coil coating process. These are made in modern factories (with 5 coating lines) for many industries, like construction (roofing and wall cladding) and car making (automotive outer panels). It can produce around 20 million tons of raw steel a year, which makes it one of China’s larger steel producers, ranking top 10 in the country.
Here’s what really makes Masteel stand out, though. It’s their special steel products—high-speed train wheels. The company is one of the few domestic manufacturers that can produce high-speed train wheels (for CRH380 and Fuxing EMUs) that meet international standards, breaking the monopoly of foreign brands. That’s a job that requires them to meet very tough quality rules, with a product qualification rate of 99.8%.
This same focus on high quality is used in their prepainted steel work—they adopt strict quality control standards, with each batch of products undergoing 10+ tests (adhesion, impact resistance, bending resistance). In 2019, the huge company China Baowu Steel Group bought a controlling share of Masteel (holding 51% of the shares). This deal brought it into the world’s biggest steel group and gave it access to better technology (such as Baowu’s environmental protection and intelligent manufacturing technologies) to keep improving its products.
Shougang Group
Year Founded: 1919
Main Products:
- Hot-Rolled Steel Coils
- Cold-Rolled Steel Coils
- Electrical Steel Products
- Medium and Heavy Plates
- Galvanized Steel Products
- Automotive Steel Sheets
- Color Coated Steel Products
- Long Steel Products
Shougang Group is a true veteran of China’s steel industry, with a history spanning over 100 years. Its main office is in Beijing, and it has production bases in Hebei (Caofeidian), Jiangsu, and Guizhou. This company has been around for more than 100 years—it was founded in 1919 during the Republic of China era! It has grown from just a local plant (with an initial annual output of 10,000 tons) into a giant industrial company with annual revenue of over 150 billion yuan.
A big change came in 2005. The company started moving its main steelmaking factory from its old home in Beijing (Shijingshan District) to a new, modern facility at a place called Caofeidian Port, Hebei Province. This was done to use better technology that was also kinder to the environment, reducing air pollution in Beijing and meeting the city’s urban development needs. The new Caofeidian base has a total investment of over 60 billion yuan, with annual steel output of 10 million tons.
Today, it is the ninth-largest steelmaker in the world, with an annual steel output of over 30 million tons. Color-coated steel is a very important part of its business, accounting for 12% of its total output (about 3.6 million tons per year). These prepainted coils are sold to be used in residential roofing, commercial facade, refrigerator doors, washing machine shells, and light commercial vehicle bodies. The company has become very good at making steel sheets for cars, supplying to Beijing Benz and BAIC Motor.
But Shougang is more than just a steel factory. It runs its own iron ore mines in China (in Hebei and Inner Mongolia, with annual output of 5 million tons) and even owns a major one in Peru (the Marcona iron ore mine, with annual output of 12 million tons). This helps make sure it always has the raw materials it needs to make steel, reducing the impact of fluctuating international iron ore prices.
In a notable move, after closing its old factory in Beijing, Shougang converted the land into a public park called Shougang Park. That park was later used as a site for the 2022 Winter Olympics (hosting the big air snowboarding events), becoming a model of industrial heritage transformation. It’s a great story of how an old company can change for the better, balancing industrial development and environmental protection.
Conclusion
Prepainted steel coil is used more and more in homes, cars, and factories as urbanization and industrialization advance globally. China’s top makers are finding better ways to coat and shape the steel—such as more environmentally friendly developing water-based coatings and thin-gauge, high-strength prepainted steel for lightweighting. China produces over half of the world’s prepainted steel, meeting international quality standards, and effectively serves global buyers, making it a key hub for supply.
