According to data from the industry self-regulatory organization China Packaging Federation, the biaxially oriented polyamide film products of Xiamen Changsu, a subsidiary of Sinolong , have maintained a global market share of over 20% for multiple consecutive years.

However, just over three decades ago, Yang Qingjin was merely engaged in ordinary material trading when he started his business. Reflecting on the secret to the company's rapid growth, Yang attributes it to three core capabilities: independent innovation, integrated industrial chain operations, and a global strategic layout.

First, in terms of innovation, looking back to the early days of entrepreneurship, domestic material technology was relatively underdeveloped, prompting Yang Qingjin to commit to developing China's own new materials. In 2012, he led the team into the polyamide (PA) field, focusing intensely on technological innovation.

Since then, the company has consistently increased its R&D investments and established four innovation engines: production, academia, research, and application. This approach has not only led to the successive launch of new specialty film materials such as PHA lithium-ion battery films and EHA ultra-high barrier films but has also positioned the company as one of the few globally to master film material technologies spanning the second to the fifth generations.

Second, in terms of operations, after gaining experience in raw materials, Sinolong shifted its focus to the entire industrial chain. It pioneered an integrated industrial chain, spanning from upstream raw materials like PA6 to downstream functional film materials such as BOPA (Biaxially Oriented Polyamide Film).

"Integrated operations not only effectively reduce production costs and ensure a stable supply of raw materials but also significantly enhance the frequency and efficiency of innovation across the upstream and downstream sectors. Taking the Quanzhou production base as an example, the BOPA production line is built adjacent to the PA6 production base, creating a notable 'wall-breaking effect' in industrial synergy," Yang Qingjin stated.

Finally, in terms of globalization, the company has established three major production bases in Xiamen, Quanzhou, and Indonesia, while building a comprehensive global sales network and a worldwide R&D platform.

Currently, Sinolong's sales cover more than 40 countries and regions worldwide, including Southeast Asia, Europe, and the Americas. It has not only established collaborations with large international enterprises such as Amcor, Mondi Group, and Winpak but has also successfully entered the supply chains of terminal brands like BYD, CATL, Farasis Energy, Sunwoda, Unilever, and Procter & Gamble.

In the first half of this year, the company's overseas business revenue accounted for approximately 53.4% of its total operating revenue, an increase of 9.2 percentage points compared to the previous full year.