Nippon Ketjen Co., Ltd. contributes advanced technologies that improve economic feasibility of oil refining through the development, production and sales of hydroprocessing catalysts, as well as, off-site catalyst regeneration/presulfiding, technology services and process licensing.
The company is also dedicated to protecting the global environment through these activities.
We are constantly improving our technologies with the aim to optimize our contributions to our customer and the environment.


President's Greeting

NIPPON KETJEN, A Catalyst Manufacturer Aiming to Contribute to Stable Energy Supply and Environmental Conservation

Since our founding in 1970, we have been providing hydroprocessing catalysts for petroleum refining and contributing to the stable supply of energy and the conservation of the global environment as a member of the Sumitomo Metal Mining Group. During this time, in response to stricter environmental regulations and customer needs, we have worked to develop higher-performance catalysts and establish technologies for the regeneration and rejuvenation of used catalysts, promoting their reuse.

Recently, changes in social conditions and the natural environment have become more pronounced, and awareness of sustainable societies and environments is increasing. In collaboration with Ketjen Corporation, we have newly added the ReNewFine catalyst for the production of 100% hydrogenated vegetable oil (HVO) and sustainable aviation fuel (SAF) to our product portfolio to meet the diverse needs of our customers.

We will continue to respond quickly to the needs of society and our customers, striving even more to ensure the stable supply of energy and conservation of the global environment. We sincerely appreciate your continued support.

President, Shinji Morita


Management Vision

Nippon Ketjen seeks to:

  • Provide superior quality and service to ensure customer satisfaction.
  • Create an open company with sound and transparent management.
  • Respect human life and care about the global environment.

Corporate Data

Corporate Name
Nippon Ketjen Co.,Ltd.
Address of Head Office
Seavans North 1-2-1 Shibaura Minato-ku, Tokyo, Japan
Date of establishment
April 9, 1970
Shinji Morita
480,000,000 yen
Sumitomo Metal Mining Co., Ltd. 50%
Ketjen Netherlands Holdings B.V. 50%
Main Operations
Production and sales of hydroprocessing catalysts


Head Office
Seavans North 1-2-1 Shibaura Minato-ku, Tokyo, Japan (Google Map)
Niihama Division and R&D Center
17-4 Isoura-chou Niihama-shi, Ehime, Japan (Google Map)
Eurecat Plant
366-20 Otsu Isoura-chou Niihama-shi, Ehime, Japan (Google Map)
Nippon Ketjen Singapore Pte.Ltd.
18 Robinson Road, Singapore 048547
Korea Office
602 Trade Tower World Trade Center Samsung-dong,Kangnam-gu Seoul,Korea


Establishment of Nippon Ketjen Co., Ltd. Joint investment with Akzo Chemicals B.V. and Sumitomo Metal Mining Co., Ltd. Start of sales of HPC catalysts(*2).
Start of operations at 1st HPC catalyst plant.
Start of operations at 2nd HPC catalyst plant.
Start of operations for new production process for HPC catalysts.
Start of sales for KFR series of residue hydroprocessing catalysts.
Start of sales for presulfided catalyst "Easy Active".
Start of sales for Guard Reactor System in the residue hydroprocessing.
Start of sales for HC catalysts(*3).
Adoption of CFI process(*4) at a domestic oil refining company (1st in Japan,7th in the world).
Increase of R&D facilities and pilot test units.
Acquisition of ISO 9001 certification.
Acquisition of ISO 14001 certification.
Acquisition of OHSAS 18001 certification.Unification through conversion of east and west plants to DCS.
Inheriting of operations of Nippon Eurecat Co., Ltd.
Albemarle Corporation inherits Akzo Nobel's holdings of Nippon Ketjen Co., Ltd. (50%). Reception of TPM Award Type 2.
Awarded Fiscal Year 2005 High-Pressure Gas Safety,Nuclear and Industrial Safety Agency Director Commendation.
Albemarle Corporation and Nippon Ketjen Co., Ltd. form a Hydroprocessing Alliance with UOP LLC to help Refiners Produce Clean Fuels.
Nippon Ketjen Co., Ltd.'s STARS Technology Receives Coveted Technology Award from Catalyst Manufacturers Association of Japan.
Ketjen Netherlands Holdings B.V. inherits Albemarle Corporation's holdings of Nippon Ketjen Co., Ltd. (50%).
  • *1.FCC catalyst: Fluid catalytic cracking catalyst
  • *2.HPC catalyst: Hydroprocessing catalyst
  • *3.HC catalyst: Hydrocracking catalyst
  • *4.CFI process: Cold Flow Improvement Process
  • Company Priofile
    • President's Greeting
    • Management Vison
    • Corporate Data
    • Location
    • History