Hubei Dinglong Shares Rise 116% Over Past Year, Lifting Cofounders to Billionaire Status

Shares of Hubei Dinglong surged nearly 116 percent over the past year as of May 8, 2026, propelling its cofounders into the ranks of billionaires. 19 yuan on May 2, 2026. The brothers each own stakes of roughly 15 percent in the firm.

Zhu Shuangquan, the 61-year-old cofounder and chairman, and his younger brother Zhu Shunquan, the 57-year-old cofounder and CEO, built Hubei Dinglong from a printer-toner startup into China's only supplier that covers the full range of chemical mechanical polishing materials including slurries and cleaning fluids.

The Wuhan-based company listed on the Shenzhen stock exchange's ChiNext board after a 458 million yuan IPO in 2010. Hubei Dinglong did not respond to a request for comment regarding the brothers' billionaire status.

U.S. imposed chip-related export controls on China in 2022. The company manufactures photoresist for lithography that can only be used in lower-end chip manufacturing.

It has also expanded into materials for advanced semiconductor packaging including temporary bonding adhesive. 9 million). Revenue climbed 24 percent year-on-year to 1 billion yuan.

The growth was driven mainly by its CMP materials business. Hubei Dinglong’s advanced chip packaging materials and photoresist businesses have entered the stage of stable, small-batch supply as of Q1 2026. 7 billion yuan in revenue, with more than half coming from semiconductor-related businesses.

Approximately 70 percent of Hubei Dinglong’s revenue during the 2025 period was generated domestically. The company also produces materials for OLED display screens. Prior to founding Hubei Dinglong the brothers worked as managers at state-owned enterprises.

Zhu Shuangquan was previously a manager at Hubei International Economic and Foreign Trade while Zhu Shunquan was previously a manager at Hubei International Economic and Technical Cooperation. The brothers cofounded Hubei Dinglong in 2000 with the aim of reducing China’s dependence on imports. They began with chemicals used in printer toners before expanding into other printer consumables.

In a February 2026 interview with Securities Times, Zhu Shunquan stated that the CMP expansion was sparked by the team’s discovery that CMP materials had some chemistry elements in common with toner materials. In a 2019 interview with Changjiang Daily, Zhu Shuangquan stated: “In the early days of starting a business, aside from an idea, a burst of drive and an insight into a market or an innovative product opportunity, Chinese private enterprises had nothing.

They relied solely on a ‘burn the boats’ spirit to get things moving. Dinglong will never lose this drive. ” Forbes reported the details of the brothers' stakes, net worth calculations and company history.