Coolant is all we do.
For 26 years.

SELTEC began in 2000 as a lubricant distributor, went on to manufacture metalworking fluids, and then moved into the equipment that manages them. Today we design and build systems for every stage of coolant use on the shop floor, from mixing and supply through concentration control and filtration to spent coolant recycling.

Founded: 2000
Registered patents: 8
Key customers: 30+

310-21 Toseong-ro, Hyangnam-eup, Hwaseong-si, Gyeonggi-do, Korea

History

2025
- Patent registered: data-driven resource recycling system using a centrifuge
2023
- Certified as a Promising SME by Gyeonggi Province (2023 to 2028)
- Presented a best-practice case at the Hwaseong City ESG economic exchange meeting for public diplomacy
- Exhibited at MTA Vietnam, Ho Chi Minh City
- Exhibited in the Korea Pavilion at IE Expo China 2023, Shanghai
- Exhibited at KOFAS (Korea Factory Automation Show)
2022
- Approved supplier, Clean Factory program for industrial complexes, Ministry of Trade, Industry and Energy (third consecutive year)
- Exhibited at the Korea Industry Fair
2021
- Patent registered: ICT-based real-time smart remote-managed spent coolant recycling and reuse system
- Certified as a company with outstanding technical capability
- SCCS 5000 CE and EAC certified
- Reselected as approved supplier, Clean Factory program, Ministry of Trade, Industry and Energy
2020
- Two patents registered (coolant sump sanitizing cleaner, circulating coolant tank purification system)
- Selected as approved equipment supplier, Clean Factory program, Ministry of Trade, Industry and Energy
- Selected for the commercialization program for environmental SMEs, Ministry of Environment
- Featured as a best-practice case in the Smart Workshop technology program, Ministry of SMEs and Startups
- INNO-BIZ certified
- Four CE certifications (SMP-CP03, FITCLEAN Series and others)
- Commendation from the Mayor of Hwaseong
2019
- Named a Centennial Small Business by the Ministry of SMEs and Startups
- Established a local subsidiary in Vietnam
2018
- ISO 9001 and ISO 14001 certified
- SMP Series and CRM Series CE certified (TÜV NORD)
2017
- Appointed a distributor in China and began equipment deliveries
- Minister's Commendation, Ministry of SMEs and Startups
- Completed a Ministry of SMEs and Startups R&D project: cleaning equipment for automotive and metal parts
- R&D department officially recognized
2016
- Two patents registered (coolant supply system for glass processing machines, coolant recycling and reuse system)
2014
- Supplied coolant supply units to Samsung Electronics in Vietnam
2012
- Two patents registered (automatic coolant supply unit, coolant supply control system)
- Established a corporate R&D center
2007
- Completed our factory and began producing specialty cutting and grinding fluids
2005
- Incorporated as SELTEC Co., Ltd.
2000
- Founded as Sungeun Yuhwa, distributing lubricants

Registered Patents

The core technologies behind SELTEC equipment, from supply and filtration to recycling and remote monitoring, are protected by our own patents.

Patent No.	Title	Related products	Year
10-2833822	Data-driven resource recycling system using a centrifuge	CRM	2025
10-2328865	ICT-based real-time smart remote-managed spent coolant recycling and reuse system	CRM, SCCS	2021
10-2131381	Circulating coolant tank purification system	FIT	2020
10-2078341	Sanitizing cleaner for water-miscible coolant sumps	FITCLEAN	2020
10-1673480	Coolant recycling and reuse system	CRM	2016
10-1630325	Coolant supply system for glass processing machines	SMP	2016
10-1183221	Coolant supply control system	SMP	2012
10-1183220	Automatic coolant supply unit	SMP	2012

Government Programs

Our technology and equipment have been recognized through programs run by Korean government ministries.

Year	Program	Organized by	SELTEC role
2020~2022	Clean Factory program for industrial complexes	Ministry of Trade, Industry and Energy	Approved equipment supplier (3 consecutive years)
2020	Commercialization program for environmental SMEs	Ministry of Environment	Selected company
2020	Smart Workshop technology program	Ministry of SMEs and Startups, Small Enterprise and Market Service	Supported company, featured best practice
2019	Centennial Small Business	Ministry of SMEs and Startups	Selected company
2017	R&D: cleaning equipment for automotive and metal parts	Ministry of SMEs and Startups	Successfully completed
	Carbon Neutral Management Innovation Voucher	Korea SMEs and Startups Agency	Technical service provider