Thorough Management of Chemical Substances

We at Tamron are continuously working to refine our management and analysis systems for chemical substances in cooperation with our business partners, striving to keep harmful chemical substances out of products in the supply chain.

Environmental Quality Assurance System and Standard (Green Procurement)
Environmental quality assurance standard
Environmental quality assurance standard
In July 2006, the RoHS (the Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) Directive* was enforced in the EU area, while The Law for Preventing Environmental Contamination by Electronic Information Devices was enforced in China in March 2007. Restrictions on chemical substances have been becoming tighter than ever on a global basis. Recognizing the importance of the restrictions, Tamron established our environmental quality assurance system to ensure thorough management of harmful chemical substances. For example, Tamron’s Environment-related Substance Management Regulations clarify chemical substances that must never be used, those admitted for now but that will be banned in the near future, and those not applicable. Our Guidance for products Environmental Quality Assurance and Guidance for Establishing Product-related Environmental Quality Assurance System provide specific procedures for preventing harmful substances from entering our products. In addition to those regulations and guidelines, Environmental Quality Management Procedures were enforced in spring 2007, as supplementary regulations to strengthen management of harmful chemical substances. Tamron will continue to reflect changes due to new laws and regulations, as well as requests from customers, in the regulations and guidelines, refining our environmental quality assurance and helping all cooperating factories in their quest for the same goal.
Tamron's Environmental Quality Assurance System
RoHS(the Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) is a directive enforced in July 2006 restricting use of six harmful substances (lead, mercury,cadmium,hexavalent chromium polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE)) in electric and electronic products.
About Our Eco-Partner System
Eco-partner accreditation certificate
Eco-partner accreditation certificate
Manufacturers procure raw materials, parts, and other auxiliary materials from suppliers to make products. What becomes important in such procurement operations is keeping the parts and materials free of harmful substances. Tamron introduced an eco-partner system in August 2006 to establish better relationships and give preferred status to eco business partners and suppliers. The system implements environmental quality assurance when procuring parts and materials, while preventing harmful chemical substances in supply chains. As of March 2007, we had 91 domestic suppliers as our ecopartners. We will work on expanding the program to accredit all our domestic suppliers as our eco-partners in the near future. We are also aiming to expand the scope of accreditation to suppliers abroad.
Flow until accreditation as an Eco-Partner
About Tamron’s Environmental Quality Analysis Structure
XRF analyzer
XRF analyzer
In 2006, our three factories in Aomori and Tamron Optical (Foshan) introduced upgraded XRF (X-ray fluorescent) analyzers to inspect and measure lead, mercury, cadmium, total chrome, and total bromide in plastic and metallic parts, thus refining our inspection structure for mass-production items. At Omiya Head Office, in addition to the analysis of lead, mercury, cadmium, and hexavalent chromium in prototype molded parts with an ICP-AES(Inductively Coupled Plasma Atomic Emission Spectroscopy), we inspect with GC-MS(Gas Chromatography Mass Spectrometry) to confirm that component materials are free of polybrominated biphenyl (PBB) and polybrominated diphnyl ether (PBDE). Thanks to this refinement of the analysis structure following RoHS Directive enforcement, our actual measurement capability of PBB and PBDE in 2006 doubled compared to our structure in 2005. (Measurement results in 2006: PBB (2,051 items), PBDE (2,064 items)

We will continue to work on improving and refining our analysis systems to establish an analysis structure even more reliable and capable of responding to customer requests even more efficiently.
Disqualified Flow of Environmental Quality Analysis
Interview with a supplier
Tetsuya Murakami Environmental control has been becoming a matter of growing concern in recent years. Regulations on harmful chemical substances are becoming stricter than ever as symbolized by the RoHS Directive enforced in July 2006. As a manufacturer of plastic products working in such a market environment, our company must use materials without restricted harmful substances such as lead and cadmium. We have been working on reducing and eventually eliminating harmful substances as guided by Tamron with their environmental quality assurance system and standards.

Our company manufactures plastic products, but some processes such as painting are often subcontracted to other companies. Therefore, in addition to managing our own practices, administering processes and procedures adopted at our subcontractors becomes essential. Performing these tasks is not easy, but regulations and guidelines provided by Tamron are a great help.

We wish to continue to strive to establish and refine a system enabling us to prevent any inadvertent outflow of harmful substances and adapt ourselves to ever changing laws, regulations, and requirements.
Tetsuya Murakami
Manager, Operation Department,
Koryo Resin Co., Ltd.
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