On June 1, 2026, the European Chemicals Agency (ECHA) updated Article 73 of Annex XVII to the REACH Regulation, bringing the integrated temperature and humidity module containing NTC thermistors and related components for export to the EU under more explicit declaration requirements. According to this update, the relevant products must submit third-party test reports proving that the nickel and cobalt release rate in a simulated sweat environment does not exceed 0.5μg/cm²/week; products that do not comply will face customs clearance being unable to be completed, and the grace period is only 30 days. For component manufacturers, module suppliers, export trading enterprises, and procurement and supply chain coordination links serving the EU market, this change deserves immediate attention.

What exactly has this rule update clarified

Confirmed information shows that ECHA officially updated Article 73 of Annex XVII to REACH on June 1, 2026.

The updated requirements apply to all NTC thermistors exported to the EU, and the scope includes integrated temperature and humidity modules.

The core of compliance proof is a third-party test report, which must prove that the release rate of nickel and cobalt in the product under a simulated sweat environment is not higher than 0.5μg/cm²/week.

According to the summary information, non-compliant products will be prohibited from customs clearance. At the same time, the grace period for this implementation is only 30 days.

Impact first appears in shipment, customs declaration and supporting certificates

Direct impact on EU export-oriented enterprises

From an analysis perspective, the first link to be affected for enterprises directly selling NTC thermistors or related modules to the EU market is pre-shipment compliance preparation. The reason is that this requirement is not a general compliance statement, but clearly requires the provision of third-party test reports, and non-compliant products will face customs clearance blockage.

This means enterprises need to focus on whether products have completed the corresponding testing, whether certificates can be provided in a timely manner along the shipping or declaration chain, and whether existing order schedules can cover the time pressure brought by the 30-day grace period.

Spillover impact on manufacturing and integration links

From an industry perspective, the affected parties are not only manufacturers of standalone NTC thermistors. The summary clearly mentions “containing integrated temperature and humidity modules”, so manufacturers that integrate NTC components into modules also need to recheck whether their product data meet the new certification requirements.

The impact is mainly reflected in product data collation, third-party testing arrangements, and delivery confirmation with downstream customers. Especially for modular products, customers usually pay more attention to the deliverability of the complete machine or complete module, so relevant enterprises need to identify as soon as possible which export product categories fall within this requirement.

Pressure on trade, procurement and supply chain coordination

From observation, the focus of trading companies, buyers and supply chain service links is not the technical parameters themselves, but the completeness of certificates and the executability of contractual obligations. If suppliers are not yet ready with the third-party test report, procurement and shipping plans may be affected in a linked manner.

For these roles, the changes that need attention include: whether existing suppliers can replenish data in time, whether in-transit or pending shipment orders have customs clearance risks, and whether customers will require updated compliance documents in advance. The 30-day grace period also makes communication and review windows relatively limited.

What practical matters need to be addressed urgently now

First confirm whether the product falls within the scope of the requirement

Combined with the known information, the first thing enterprises should do is not to generalize the rule, but to verify whether their own products belong to NTC thermistors exported to the EU, or to integrated temperature and humidity modules containing such components. Only after the scope is identified can subsequent testing, certification and customer communication have a clear target.

Whether the third-party test report is ready for delivery

From the analysis, the key point of this requirement is “a third-party test report must be provided”. Therefore, the key thing enterprises need to confirm is not only whether testing is planned, but whether the report can become a usable document before actual shipment, customs declaration, or customer review, and whether it matches the specific product.

How to connect the grace period with order schedules

The 30-day grace period means that the time arrangement itself is already a risk point. What is more worth paying attention to now is whether existing orders, orders waiting for production, and inventory planned for shipment to the EU will be affected in delivery schedules because of insufficient data preparation. For business teams, this is also an issue that internal sales, supply chain, quality, and compliance communication need to advance together.

Continuous verification of official statements in the future

From an observation perspective, although this summary has given implementation requirements and time points, enterprises still need to continue verifying official statements, applicable paths and whether there are further explanations of certification requirements during actual implementation. The policy signal is already clear, but understanding at the business execution level still needs to remain consistent with the official text and subsequent notices.

This looks more like a compliance signal taking effect immediately

From an editorial perspective, this news is not just a routine regulatory update, but an execution change that has already been aligned with specific products, specific testing methods and clear threshold requirements. In particular, the two messages “non-compliant products will be prohibited from customs clearance” and “the grace period is only 30 days” determine that it is a compliance arrangement requiring immediate response, rather than a long-term trend that can be observed over time.

At the same time, caution is also needed. Based on the current input information, the industry can confirm that the requirement has been updated and points to NTC thermistors and related modules; as for the subsequent implementation details, market feedback and the effect of corporate adjustments, the current stage is more suitable to understand it as a dynamic that still needs continuous observation, rather than an industry result that has been fully finalized.

From short-term response to continuous tracking

Overall, this update by ECHA to Article 73 of Annex XVII to REACH directly brings the EU conformity requirements for NTC thermistors and integrated temperature and humidity modules to the level of “proof of nickel/cobalt release rate reaching the standard through a third-party test report”. For relevant enterprises, the short-term focus is on identifying product scope, supplementing compliance data, evaluating shipment and customs clearance arrangements; under a neutral judgment, this news is currently more suitable to be understood as a short-term compliance change that has already landed, and also a supervision signal for implementation paths that still need continuous tracking.

Basis of this article and direction for subsequent verification

This article is generated based on the user-provided news title, event time and event summary. The information used is limited to: on June 1, 2026, the European Chemicals Agency (ECHA) updated Article 73 of Annex XVII to REACH, requiring NTC thermistors exported to the EU (including integrated temperature and humidity modules) to provide third-party test reports proving that nickel/cobalt release in a simulated sweat environment is ≤0.5μg/cm²/week, non-compliant products will be prohibited from customs clearance, and the grace period is 30 days.

According to the normal verification path for such industry news, follow-up information should usually still be cross-checked against official announcements, regulatory texts, corporate announcements, industry association information, authoritative media reports and relevant standard documents. Since no specific official source link was provided in the input, this article cannot further compare the original linked content, and subsequent verification of official text wording, applicable boundaries and implementation details is still needed.