Wang Xin started Dtech with just 30,000 yuan and today the company supplies almost 30 % of the world’s printed‑circuit‑board drill bits. Her story shows how a modest beginning can become a global powerhouse.

After her father died when she was 13, Wang left school, according to a 2024 Nanfang Daily interview. At 16 she moved to Dongguan and worked on a toy‑factory line, becoming a team leader by 18, as she told Forbes China. Later she switched to PCB sales, gaining industry knowledge.

In 1997, at age 24, Wang used about 30,000 yuan (US$4,500) of personal savings to start Guangdong Dtech Technology, buying used drill bits, refurbishing them and selling to smaller factories. The venture earned roughly 100,000 yuan in its first year.

When the 2008 global financial crisis hit, Dtech offered cheaper domestically produced tools and increased sales by 50%, according to the company’s history. During the COVID‑19 pandemic, Wang chose to expand capacity by another 50% to meet rising demand for electronic components.

Dtech listed on the Shenzhen Stock Exchange in November 2022. Research firm Frost & Sullivan estimated that by the first half of 2025 the firm held a 28.9 % share of the global PCB drill‑bit market. Forbes Asia placed Wang on its 2026 Power Businesswomen list, and Forbes ranked her 55th among China’s 2026 wealthiest individuals with an estimated net worth of $7.9 billion.

Wang’s rise from factory floor to billionaire founder illustrates how hands‑on experience, strategic choices and perseverance can transform a small savings‑funded venture into a worldwide industry leader. Her example offers a clear lesson for anyone building a career or a business.