Long Thames Enterprise Co., Ltd.
Specialized Manufacturer on PE Cartridge , Grease Cartridge & Chemical Caps.

Long Thames Enterprise was founded in 1970 and is Taiwan's largest manufacturer of sealant cartridges, with an annual output of over ten million units exported to Southeast Asia, Northeast Asia, Mainland China, the Middle East, and Oceania. We specialize in grease cartridges (also known as "butter tubes"), silicone sealant cartridges, and a wide range of plastic caps. In 2019 we became an approved supplier to Shell, in 2024 we obtained ISO 9001:2015 certification, and in 2025 we opened our Texas, USA branch office, continuing to expand our global service network.
We offer full customization services from mold development through to mass production. Whether it's a new product design or a special specification, our professional team responds quickly to help customers find the best solution.
Main Products
Plastic Grease Cartridge
- Grease Cartridges (Butter Tubes, Grease Tubes, Lubricant Tubes)
- Pull-Ring Grease Cartridges
- Industrial Grease Cartridges & Lubricant Tubes
Silicone Sealant Cartridge
- Plastic Silicone Sealant Cartridges
Cap / Lid / Spout / Closure
- Plastic Caps for Chemical Products & Motor Oil
- Plastic Caps for Metal Cans
- Various Caps & Telescopic Spouts
- Food-Grade Flip Lid for Milk Powder
Bottles & Containers
DIY Scrapers & Tools
- Repair Scrapers
- Silicone Tools
Customized Products
- Custom Products
- Plastic Product Manufacturing, Processing & Trading
Company History
| Year | Milestone |
|---|---|
| 1970 | Company founded, initially producing metal caps. |
| 1985 | Established a plastics division in response to market trends, beginning production of plastic caps and silicone sealant cartridges. |
| 1991 | Introduced European technology and equipment, adding a plastic cartridge production line. Became Taiwan's first dedicated silicone sealant cartridge manufacturer. |
| 1992 | Officially entered the plastic cartridge production market. |
| 1996 | Upgraded operations with additional precision equipment and technology from overseas. |
| 2001 | Added new factory facilities to meet growing supply demand. |
| 2005 | New factory completed in Bali District, New Taipei City. |
| 2016 | Second factory completed in Bali District, New Taipei City. |
| 2019 | Became an approved supplier to Shell. |
| 2021 | Established a cleanroom and installed new injection molding machines. |
| 2024 | Obtained ISO 9001:2015 Quality Management System certification. |
| 2025 | Long Thames Texas Enterprise LLC. established in the USA. |
Long Thames Headquarters
- ISO Certificate


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