Corporate Social Responsibility

Responsibility in a PCBA Supply Chain

Most of the environmental and social impact of an electronics product sits upstream of the brand that sells it. That makes the assembler an important link: the choices made about materials, process chemistry and waste handling at the manufacturing stage decide whether a customer environmental commitments can actually be met. Kilandu operates an ISO 14001:2015 certified environmental management system, and treats compliance as documentation that has to be produced rather than as a statement that has to be made.

Environmental management in the factory

The environmental management system covers the material streams that a PCBA line actually generates: solder dross from wave and selective soldering, spent flux and cleaning agents, component packaging, stencil and paste consumables, and electronic waste from rework and scrap boards. Each is segregated and routed to a licensed handler rather than disposed of as general waste. Energy and water use are monitored at the process level, and improvements are targeted where the consumption is concentrated rather than spread across many small measures.

Material and product compliance

Builds use lead-free processes and RoHS and REACH compliant materials. That covers the flux chemistry and the solder alloy used in production as well as the components and the laminate specified for the board. Where a customer has to report against a restricted substance list, material declarations and RoHS and REACH statements are issued with the documentation pack rather than requested separately.

Labour and workplace practice

Employment terms, working hours, health and safety provision and worker communication are governed by Chinese labour law and by the codes of conduct our overseas customers place on their supply base. Where a programme requires a site audit, it can be arranged, and the audit is treated as an input to improvement rather than as a compliance event to be passed.

Obligations that sit with the brand owner

Some environmental obligations attach to the company that places a product on a market rather than to the company that assembles it. WEEE take-back registration, market-specific packaging levies and battery directives are the clear cases: they depend on where the product is sold and under whose brand, and an assembler cannot hold them on a customer's behalf. They are still not independent of the assembler, because each one depends on data that only the manufacturing stage can supply. Packaging weights, battery chemistry and quantity per unit, and the material composition of the assembly are all assembled here. The useful thing to agree at the start of a programme is therefore not who owns the obligation, but which data has to be passed upstream, in what format, and how often. Where a customer reports annually, we would rather set that data flow up once at the beginning of a programme than reconstruct it at reporting time.

Conflict minerals and extended declarations

Where a customer has to make a conflict minerals disclosure covering tin, tantalum, tungsten and gold, the underlying information comes from the component manufacturers and is passed through the supply chain. We collect the declarations available from our component sources and pass them upstream with the build documentation, and we are explicit about the limit of what that covers: a declaration is only as good as the source behind it, and for parts bought through distribution the manufacturer declaration is what exists, not a smelter-level audit. Customers who need smelter-level assurance should tell us at quotation, so that the sourcing route for the affected parts can be chosen with that requirement in view rather than after the BOM has been placed. The same logic applies to any customer-specific restricted substance list: sending the list with the BOM is far more efficient than raising it after the material has been ordered.

How the supply base is managed

Responsibility at the assembly stage depends on the behaviour of the suppliers upstream, so the supplier base is managed rather than assumed. Components are bought through authorized and franchised channels in preference to the open market, which is a compliance decision as much as a quality one: an authorized route carries manufacturer documentation with it, and an open-market route frequently does not. New suppliers are assessed before first use, and the assessment covers documentation and traceability alongside price and lead time. Builds are traceable at lot level, which means that when a customer raises a question about a specific shipment, the answer is derived from the production record for that lot rather than from a general statement about how the factory operates. The sourcing process itself is described under component sourcing, the material stream that flows through the site under supply chain, and the traceability that supports it under quality assurance.

Business conduct and information handling

Customer designs are treated as confidential by default. Gerber files, BOMs, schematics and assembly drawings are held for the project only, under access control, are not shared with third parties, and are not reused for another customer. Where a programme requires a confidentiality agreement, it is signed before files are exchanged rather than after. On the factory side, the conduct expected of staff covers the handling of customer property and the avoidance of conflicts of interest in purchasing, and it is a condition of employment rather than a guideline. Where a customer operates a supplier code of conduct, we will review it against our own practice and confirm in writing whether it is met, rather than signing it as a formality.

Customer audits and site visits

Site audits are welcomed, and the practical way to get value from one is to say in advance what is being assessed. Audits that go well are the ones with a defined scope: an environmental management audit, a quality system audit, a labour practice audit and a process audit each need different records and different people in the room. Tell us the standard being audited against and the checklist in use, and the relevant documentation is prepared before the visit rather than retrieved during it. Findings are treated as inputs to improvement, with a response and an owner for each, and where an audit is carried out on behalf of an end customer under an existing supply agreement, the same response applies. Site visits without an audit scope are also possible, and are the usual first step for a customer who wants to see the lines before committing to a programme; the PCBA factory and factory capabilities pages describe what is on site, and factory management covers how the site is run day to day.

Records we keep, and what can be provided on request

The documentation that supports the claims on this page is retained and can be produced on request rather than restated as an assurance. What is normally available:

• ISO 14001:2015, ISO 9001:2015, IATF 16949:2016 and ISO 13485:2016 certification details.
• RoHS and REACH declarations for the material used on a specific build.
• Material declarations against a customer restricted substance list.
• Component manufacturer declarations collected for the parts on a build, including conflict minerals disclosures where the source provides them.
• Production and inspection records for a specific lot, where a customer needs them for their own reporting.
• A written response to a customer supplier code of conduct, confirming which clauses are met and which require discussion.

Requests are answered with the document itself rather than with a statement that the requirement is met. To ask for one of the items above, or to arrange an audit, write to alden@kilandu.com with the build reference and the reporting requirement. Environmental certification details are held alongside the other management system certificates described on the quality assurance page.