Sedex and SMETA for Packaging Suppliers: A Buyer’s Audit Guide

Sedex provides a platform for supply-chain information; SMETA is its social-audit methodology. Sedex describes SMETA as a tool for identifying conditions and improvements, not a certification with a pass or fail. Source: Sedex SMETA overview.

A membership reference can help identify an organisation, but it does not answer when a particular factory was audited or which findings remain open. Ask for authorised access to the applicable report and corrective-action information. Keep the site identity, scope and review date together.

For MTT’s partner-based production, the evidence belongs to the relevant manufacturing partner. It should not be described as “MTT Sedex certification.” Nor should one partner’s record be used as a blanket claim about every site that might make a box, bag or insert.

SMETA offers 2-pillar and 4-pillar assessments. The two founding pillars are labour standards and health and safety; the 2-pillar scope also includes a basic environmental assessment. The 4-pillar scope expands environmental assessment and includes business ethics. Source: Sedex Complete SMETA Audit Guide.

A larger scope is not a claim that no problems exist. Read the findings. If your customer specifies an audit scope, date range or approval process, obtain those requirements before offering a production site. There is no universal buyer acceptance rule in this article.

Map the main operations for the order: printing, cutting, wrapping or gluing, insert production, bag-handle fitting, assembly and packing. Ask which operations occur at the reviewed site and which are subcontracted. A box can pass through several businesses before shipment.

The risk is a paperwork mismatch: a report names the main factory, while labour-intensive assembly is carried out elsewhere. Do not assume the audit automatically covers that other site. Ask the partner to identify the arrangement and refer it to the buyer’s sourcing team for the necessary review.

This mapping can sit beside the material and process specification in the packaging brief. Record the production route before a tight launch schedule makes changing it difficult. Where a new site is proposed, revisit the approval instead of treating the old report as transferable.

Sedex explains that approved audit companies conduct SMETA and that corrective-action planning supports improvement. Source: Sedex audit process.

For each relevant finding, ask what action was agreed, who owns it, its due date and what evidence shows progress or closure. The responsible auditor and buying organisation determine the applicable verification and acceptance process. Avoid converting a report into an unsupported “100% ethical” claim.

Handle worker-related information through authorised channels. A public blog or product page should not publish confidential audit detail, personal records or a customer’s internal supplier decision. Public marketing can explain the verification process without exposing the report.

Illustrative scenario: a seasonal gift-box order requires extra assembly capacity. The proposed partner offers an additional assembly site. Before accepting the schedule, check whether that site and arrangement meet the buyer’s policy. An earlier audit of the original site does not resolve the new handoff by itself.

A social audit does not establish colour accuracy, box compression performance, insert fit or food-contact suitability. Those questions need their own specifications and evidence. Combining them into one “certified factory” statement makes it harder for a buyer to see what has actually been checked.

Use the packaging inspection checklist for lot acceptance and the sampling process for structure and appearance approval. Social-audit evidence belongs in the supplier qualification file, linked to the approved production route.

Before reordering, check whether the site, ownership, audit status or subcontracting route has changed. Let the buyer’s policy define the required review interval and escalation rules. MTT can coordinate documents and production handoffs, while the buying organisation retains its own supplier-acceptance decision.

Prepared by MTT Packaging editorial. Sources checked on 8 October 2026.

• Sedex: SMETA purpose, audit process and non-certification status
• Sedex: 2-pillar and 4-pillar assessment scope

MTT is a China packaging development and manufacturing partner. Credential references in this guide concern the relevant production partner, not certification held by MTT itself. Partner documents, current status and the scope applicable to an order must be checked before making a purchasing or artwork claim. The checklists and scenarios are editorial buying guidance, not published customer results or a certification audit.