Dr. Lan Weiguang, a Singaporean Chinese scientist, entrepreneur, and globally recognised pioneer in membrane technology, is the founder of Suntar International Group. Known as the “Pioneer of Nanofiltration” in China, he coined the term 纳滤 and drove its national adoption. As an adjunct professor and doctoral advisor at leading institutions including NUS, UCAS, PKU, XMU, and NCU, he has advanced the field through both academia and industry. Under his leadership, Suntar has grown into a global force with over 100 invention patents and nearly 1,000 applications, delivering award-winning innovations across B2B, B2G, and B2C markets—transforming scientific breakthroughs into real-world industrial and social impact.
Projects
Direct Lithium Extraction (DLE)
The company has established long-term partnerships with leading salt lake lithium extraction enterpr...
Vitamin
In the vitamin production sector, the company has successfully completed over 80 project application...
Antibiotics
In the past two decades, the company has successfully completed nearly 50 project applications in th...



