Strong sea winds hit the metal gates of Guangdong Longma Casting at the southern edge of Yangjiang. Inside this busy factory in southern China, workers build massive steel parts for the offshore wind power industry. The company operates a strict laboratory that tests raw materials every day. Yuan Jie leads the testing team and ensures that every batch meets tough global standards before leaving the building.
Longma makes four heavy core parts for wind turbines. Workers cast hubs, bases, shaft systems, and bearing housings. These massive metal pieces keep ocean wind farms running smoothly and generating electricity. General Manager Liu Bin proudly shared that the factory saw massive growth early this year. The company pushed its first-quarter export value past 26 million yuan, which equals about $3.8 million. Workers recently packed up a new batch of heavy hubs and bases and shipped them to Europe on April 25.
This local success matches a massive nationwide boom. Across China, manufacturers shipped out wind turbines and parts at record speeds. Official data show a 45.2 percent increase in these exports in the first quarter compared with the previous year. To win foreign buyers, local factory bosses know they must build parts faster and better than anyone else in the world.
Longma stays ahead of the competition by inventing new tools. Inside the main workshop, a giant new machine dominates the floor. Engineers built an independent gantry turning and milling machine that combines two major cutting operations into a single system. In the past, workers needed four separate steps to process heavy steel shafts. Now, this new tool finishes the job in just two steps. Liu explained that this invention boosted overall factory efficiency by more than 40 percent.
The giant machine easily cuts metal castings that measure up to 10 meters across. This upgrade changed the game for heavy equipment builders in the region. Longma set up shop in this Yangjiang manufacturing hub nearly 8 years ago. Since then, the local business environment has grown into a complete industrial network.
You can drive down a narrow stretch of the coastline and find over 30 different component suppliers. Big names like Ming Yang Smart Energy and Goldwind build complete turbines right next door to the parts makers. These neighbors make everything from fiberglass blades and tall steel towers to thick underwater cables. Engineers, testers, and factory workers all work together smoothly in one small area.
This close network completely changed how local companies sell their goods. Instead of shipping only bare parts to Europe, Longma now sells a large share of its products to the factories next door. Those neighbors assemble the final wind turbines and ship the finished giants overseas. Because of this local teamwork, Liu expects his total shipment volume to jump by more than 40 percent this year.
Chinese turbine builders keep winning more foreign contracts because they build great products, run reliable supply chains, and ship orders on time. As these final builders grow their global market share, they need more raw parts. Liu noted that his domestic orders from nearby factories are growing faster than his direct foreign exports.
You only need to drive 10 minutes down the road to reach the Ming Yang Smart Energy factory. This company buys huge steel parts from Longma and turns them into finished power plants. Assistant Plant Manager Ye Guanglun walked through the busy assembly room and pointed at massive solid steel rings. He explained that these heavy hubs connect the spinning blades directly to the main generator shaft. Longma supplies a large share of these heavy-metal parts.
Ye showed off a special order sitting on the factory floor. His team currently builds 5 complete wind turbine sets for a major energy project in Vietnam. The factory workers plan to finish the machines this month and load them onto ships in early May. Ye said the factory brings in clients from all over the world. He expects buyers from Indonesia and Saudi Arabia to visit the plant very soon.
A major 2025 energy report showed exactly how much Chinese companies dominate the global market. Between 2024 and 2025, Chinese wind turbine builders increased their overseas installed capacity by 8 times. For the first time in history, Chinese brands captured all 6 top positions in global market share. Experts say this massive win comes from the combined power of entire supply chains, not just one lucky company.
The Yangjiang industrial cluster demonstrates that placing suppliers and builders in the same neighborhood reduces costs and accelerates production. Local city leaders want to push this momentum even further. They plan to help local green energy companies secure more international contracts. By the end of this year, officials aim to surpass 1 billion yuan in the total import and export value of local green power equipment.
