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ExxonMobil and its predecessor companies have done business in Japan for over a century.

Affiliates of Standard Oil of New York (SOCONY) and Vacuum Oil set up branch offices in Yokohama in 1893, selling kerosene and lubricants.

Throughout its history, ExxonMobil has evolved to meet the dynamic needs of the energy sector and the restructuring of Japan in June 2012 was a continuation of that process. ExxonMobil Japan (EMJ) is operating as a 100% ExxonMobil affiliate. EMJ remains committed to customers, suppliers, venders and society in Japan and in the Asia Pacific region by maintaining a strong market presence and supplying a number of products and services.

EMJ is an important part of ExxonMobil's global business structure providing local, regional and global interface with key customers. EMJ businesses remain a key part of ExxonMobil's integrated business strategy.

ExxonMobil affiliates in Japan are: ExxonMobil Japan G.K. and ExxonMobil LNG Market Development LLC, Japan Branch.


ExxonMobil Japan G.K. has offices at 2-16-4 Konan, Minato-ku, Tokyo 108-8218 Tel. +81 (3) 5782-3800. 

ExxonMobil operates several businesses and partnerships:

  • ExxonMobil’s butyl, specialty elastomers, polyolefin, synthetics and catalyst chemicals businesses, including its ownership in Japan Butyl Company (by ExxonMobil Japan G.K.);
  • LNG market development activities (by ExxonMobil Japan LNG Market Development LLC); and
  • Collaborations and engineering partnerships with Japanese companies or institutes in the upstream sector.

Each of these activities is described in more detail below.


Butyl is a unique low-permeability elastomer, and a preferred material for manufacturers of high-quality tires and medical stoppers in Japan.

ExxonMobil Japan G.K. domestically markets and exports butyl manufactured by Japan Butyl Co. Ltd (head office: Kawasaki City, Kanagawa Prefecture). JBC is a fifty-fifty joint venture between JSR Corporation (head office: Minato-ku, Tokyo) and ExxonMobil Japan G.K.

JBC has plants in Kawasaki and Kashima. The two plants are expected to manufacture 80,000 tons per year of halogenated butyl rubber, and 18,000 tons per year of regular butyl rubber.

Specialty elastomers

ExxonMobil Japan G.K. markets a number of imported EM specialty elastomer products in Japan, including Vistalon® EPDM, and Santoprene®TPV.

Plastics and resins

ExxonMobil Japan G.K. supports market development for Metallocene PE such as Enable™ and Excced™, various type of PE / PP products, as well as Vistamaxx™ Performance Polymers and Escorez™.


ExxonMobil Japan G.K. supports ExxonMobil group’s synthetics market development in Japan.


ExxonMobil Japan G.K. supports ExxonMobil group’s catalysts licensing business in Japan and the Asia Pacific region.

Fuels & Lubricants (F&L) 

EMG Lubricants G.K. manufactures and markets various types of Mobil brand lubricants including Mobil 1 in Japan based on the manufacturing & sales licensing partnership with ExxonMobil. ExxonMobil Japan G.K. is in charge for brand management and supports the product developments, as well as headquarters management for Japanese global customers. Also, ExxonMobil Japan G.K. markets base oil, white oil and wax in Japan.


The Japan branch of ExxonMobil LNG Market Development Inc. supports market development in Japan.

Other activities

ExxonMobil has a broad range of collaborations and engineering partnerships with Japanese companies.

Social responsibility in Japan

ExxonMobil Japan G.K. conforms to ExxonMobil’s high standards in business ethics, compliance with law, and respect for the culture and diversity of the host countries in which we operate. ExxonMobil Japan continues to support Japanese society through various cooperative social activities and contributions.

Exxon Mobil Corporation has numerous affiliates, with many names that include ExxonMobil, Exxon, Mobil, Esso and XTO.  For convenience and simplicity those terms and terms such as Corporation, company, our, we and its are sometimes used as abbreviated references to specific affiliates or affiliate groups.