Mineral Resources

Business Unit Overview

San Cristobal mine San Cristobal mine

In the Mineral Resources field, we are giving first priority to efforts aimed at the early completion of the Ambatovy nickel project and the Sierra Gorda copper and molybdenum mine project. On a global scale, our trading businesses provide carbon products, iron and steel making raw materials, petroleum, and gas as well as derivative product functions.


Strategic Fields in Sub-Saharan Africa

Assmang Limited. Assmang Limited.
  • Copper
  • Coal
  • Iron ore, manganese ore Oil and gas
  • Silver, zinc, lead and nickel
  • Platinum Group Metals (PGM)

Business Overview in Sub-Saharan Africa

Assmang Limited. Assmang Limited.
  • Purchase of iron ore, manganese ore and ferro alloy (since 1962)
  • Purchase of steaming and coking coal
  • Supply of cathode block
  • Petroleum product off-take from Angola (2009)
  • Share participation in nickel mining and refinery in Madagascar (2005)
  • Share participation in a South African ferro alloy company (1997)
  • Share participation in a South African mining company – iron ore, manganese & chrome (2007)
  • Share participation in an iron ore, gold & lithium exploration company in Africa (2015)

Sumitomo Corporation’s global successes

Manganese alloy project(Malaysia) Manganese alloy project (Malaysia)

Participation in producing and marketing manganese alloy in Malaysia

Sumitomo Corporation, together with Assmang, a South African resource company, and China Steel, Taiwan’s largest steel manufacturer, has participated in an initiative to produce and market approximately 180,000 tons of manganese alloy annually. The project is based on a long-term, stable and competitive supply of electricity from hydropower generation in Sarawak, Malaysia, by using high-grade manganese ore supplied by Assmang, with whom we have an indirect capital relationship.

Arial view of site(Malaysia) Arial view of site (Malaysia)
Construction work began in February 2014 and the first furnace was switched on in April 2016, followed by the second furnace in September 2016. We held an Opening Ceremony on March 15, 2017 at site. Manganese alloy is primarily used as auxiliary raw material in steel production to improve the strength and wear resistance of steel. We are supporting the stable supply of manganese alloy for which higher demand is expected in the medium- to long-term due to increased production of crude steel, particularly high-grade steel products, in Asia.