About Us

Established in 1997, PT Sentral Koneksi Internasional has been the official partner and distributor of NCH Corporation. Specialized in maintenance products, which include industrial lubricants, oils and greases for many years, we guarantee our products will excel in various industrial maintenance usage. With years of experience, our associates are professionally trained to ensure that our products satisfy every clients’ need. We also provide visits and consultation to our clients – regardless of locations and terrains. PT Sentral Koneksi Internasional is located in Surabaya, Indonesia. With the business growing rapidly, we have expanded branches all across Indonesia, which include Java Island, Riau Island and West Kalimantan.

The founder Mrs. Sri Suharti Tjhin, has invented the Certop® product since the company had been established. More products have been added as the company expanded through Indonesia, which include products from our partner, NCH Corporation and Clarion Lubricants.  Currently, more Certop® products are being produced in order to fulfill demands from consumers. PT. Sentral Koneksi Internasional is continuing to innovate and will always deliver the best to meet consumer standards.

Our Vision

To make the company as a trusted partner and to be actively involved in National development program.

Our Mission

To expand our market through good services, keeping up with the advancement of technology, developing professionally trained associates which resulting in a professional company.

Our Values


We are committed to deliver the best to our clients and to better the service in maintaining our products’ qualities.


We believe that teamwork empowers our individual strength to reach the same vision and mission.


We continue to develop new ideas in order to improve our products and services.


We train associates according to the highest standard of professionalism.