Improvement of customer satisfaction

The Group's sales, manufacturing, and quality assurance sections make up an integrated organization that contributes to progress in society by continually delivering satisfying and reliable products.

Quality assurance structures

In our company, the Quality Assurance Department plays a central role in maintaining and managing the quality management system. The Quality Assurance Department, as an independent department, is responsible for all tasks related to quality assurance. By having a separate department for quality assurance, we create a check and balance system, aiming to improve and strengthen the quality assurance function and provide more reliable products.
The Quality Assurance Department is led by the Quality Assurance Officer, who oversees the heads of the quality assurance departments in each business unit. This centralizes the management of quality-related initiatives and activities. We also collaborate with the Risk Management Office to implement improvement activities such as continuous improvement of critical issues, prevention of quality claims, and enhancement of customer satisfaction throughout the group.

Status of ISO and Other Quality Certifications

[ISO9001]

Facilities in Japan
Name of facilityDate certification acquired
Chiba WorksDecember 2003
Hirota WorksOctober 2008
Domestic subsidiaries
Name of companyDate certification acquired
Mitsubishi Nagasaki MachineryMarch 1995
Mitsubishi steel Muroran Inc.March 2015
Overseas subsidiaries
Name of companyDate certification acquired
PT. JATIM TAMAN STEEL MFG.June 2015
MSSC Ahle GmbHAugust 2018
MSM SPRING INDIA PVT. LTD.October 2018
MSM CEBU, INC.March 1998
MSM (THAILAND) CO., LTD.March 1999

[ISO/TS16949]

Overseas subsidiaries
Name of companyDate certification acquired
MSSC CANADA INC.May 2018
MSSC US INC.April 2018
MSSC MFG MEXICANA, S.A. DE C.V.June 2018
MSSC Ahle GmbHSeptember 2018
MSM NINGBO SPRING CO., LTD.August 2018
MSM(THAILAND)CO., LTD.February 2007

Handling Harmful Chemical Substances

Standards for management of harmful chemical substances are being instituted worldwide, and there are increasing demands for products that do not contain these substances. The Group has set up systems for managing any harmful chemical substances our products in response to customer demands that we meet the European RoHS Directive and the REACH Regulations. We also issue documents concerning substances of environmental concern, guaranteeing that we avoid deliberately using them as additives.

Harmful Chemical Substances Related to Quality Assurance

  • Lead and lead compounds
  • Cadmium and cadmium compounds
  • Mercury and mercury compounds
  • Hexavalent chromium
  • Polybrominated biphenyl (PBBs)
  • Polybrominated diphenyl ether (PBDE)
  • etc.

Customer accolades and Certification achievements