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Article Highlights:
In February 2026, the European Chemicals Agency (ECHA) opened a public consultation on its 13th draft recommendation to add four substances to the REACH Authorisation List. These substances are bumetrizole (UV-326), octrizole (UV-329), triphenyl phosphate, and photoinitiator 379.
Historically, there's often been a multi-year gap between a substance landing on the Candidate List and being formally recommended for authorization. Here, ECHA moved these substances from Candidate List to a draft Annex XIV recommendation over the course of roughly two years.
Given the accelerated pace ECHA has shown in moving these four substances from Candidate List to the draft recommendation for the Authorisation List, companies with meaningful exposure to any of these chemicals should not be treating the current lull as an opportunity to pause their compliance efforts. Instead, this should serve as valuable planning time.
Four chemicals that are critical to the formulations of various coatings, plastics, electronics, and rubber goods are now firmly in the crosshairs of the REACH authorization process. And while the restrictions on these chemicals will almost certainly take time, they will eventually require significant changes from manufacturers who use any of the substances.
In February 2026, the European Chemicals Agency (ECHA) opened a public consultation on its 13th draft recommendation to add four substances to the REACH Authorisation List. These substances are:
Bumetrizole (UV-326)
Octrizole (UV-329)
Triphenyl phosphate
Photoinitiator 379
That consultation closed in May 2026. Now, the substances are moving through the next stages of an authorization process that, when finished, will effectively phase these chemicals out of the EU market unless a company obtains explicit permission to keep using them for a specific purpose.
For procurement and compliance teams, this is the kind of development that's easy to miss in February—when it first started surfacing in the regulatory sphere—and expensive to discover in the middle of a product redesign eighteen months later. Here's what has actually happened, when the next deadlines are arriving, and which industries should be paying the closest attention to this major chemical compliance development.
How These Four Substances Reached the REACH Authorization Pipeline
REACH authorization doesn't happen overnight, and it doesn't happen randomly, either. Substances move through a defined sequence: first, they're added to the Candidate List of Substances of Very High Concern. Then, ECHA periodically recommends a subset of those candidates for inclusion on Annex XIV, the formal Authorisation List. Once a substance lands on Annex XIV, companies that want to keep manufacturing, importing, or using it in the EU must apply for and receive explicit authorization tied to a specific use.
But the four substances have not reached that phase of the prohibition process quite yet. All four chemicals were added to the SVHC Candidate List over the past few years. Bumetrizole (UV-326) and octrizole (UV-329) were added to the Candidate List in January 2024 based on evidence that they are very persistent and very bioaccumulative (vPvB) under REACH Article 57(e). These substances, in other words, don't break down well in the environment, and they steadily accumulate in living organisms over time.
Triphenyl phosphate followed in November 2024, flagged because of its endocrine-disrupting properties and the ways they impact the environment and wildlife. Finally, photoinitiator 379—formally 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(morpholin-4-yl)phenyl]butan-1-one—was added on reproductive toxicity grounds.
What's notable about the progression of all four of these substances along the REACH compliance process is the pace. Historically, there's often been a multi-year gap between a substance landing on the Candidate List and being formally recommended for authorization. Here, ECHA moved these substances from Candidate List to a draft Annex XIV recommendation over the course of roughly two years. That's a meaningfully faster cadence, and it signals that ECHA is treating vPvB, reproductive toxicity, and endocrine-disruption hazards as priorities for accelerated action, rather than substances that can sit on the SVHC for years before being seriously considered for the Authorisation List.
The Deadlines That Matter for REACH Authorization Right Now
The public consultation on ECHA's draft recommendation ran from February 2, 2026, through May 2, 2026. During that three-month window, industry stakeholders had the opportunity to submit data on use volumes, supply chain structure, and potential exemptions—information that directly shapes which uses ultimately get swept into the authorization requirement and which, if any, get carved out.
With the consultation closed, the process now moves to ECHA's Member State Committee. These states will review the feedback gathered during the public comment period, and eventually produce a formal opinion on the draft recommendation. That opinion feeds into ECHA's final recommendation to the European Commission, and it's the Commission that makes the ultimate call on which substances are added to Annex XIV and under what conditions. Crucially, this includes the sunset date after which unauthorized use becomes illegal in the EU market.
This is the part of the REACH authorization timeline where companies tend to lose track of the clock. The consultation period closing doesn't mean the issue is resolved. Rather, it means that the substances have now entered a quieter administrative phase before a Commission decision that could ultimately land them a definitive compliance deadline. Once a sunset date is published, the runway to secure authorization, requalify formulations, or transition to alternatives is fixed. Further, REACH authorization applications themselves can take time to prepare.
Given the accelerated pace ECHA has shown in moving these four substances from Candidate List to the draft recommendation for the Authorisation List, companies with meaningful exposure to any of these chemicals should not be treating the current lull as an opportunity to pause their compliance efforts and focus on other priorities. Instead, this should serve as valuable planning time.
Which Industries Face the Most Exposure
The volume and use data ECHA published alongside the consultation gives a fairly clear picture of where the impact will be concentrated once these chemicals are added to the Authorisation List.
UV-326 and UV-329
These substances typically function as UV stabilizers that protect plastics, rubber, and coatings from degradation. That means they’re critical to the formulation of automotive components, construction materials, outdoor furniture and equipment, and general polymer manufacturing. Based on these uses, automakers, construction material manufacturers, and certain chemical companies may find themselves impacted by the potential restrictions on UV-326 and UV-329 on the horizon. In addition, UV-329 also shows up in food-contact packaging, which adds an extra layer of scrutiny for packaging producers who’ll need to document both REACH authorization compliance and food-contact safety simultaneously.
Triphenyl phosphate
The use profile of triphenyl phosphate is arguably most consequential for the electronics sector, where it functions as a flame retardant. The substance is also used by adhesive, sealant, and coating manufacturers, where it operates as both flame retardant and plasticizer. Electronics original equipment manufacturers (OEMs) that have already spent years managing flame-retardant substitutions under other REACH restrictions and RoHS should expect TPP to become another line item on the same tracking spreadsheet.
Photoinitiator 379
This substance is concentrated in UV-curable inks, coatings, and photoresists. In other words, it crops up in printing, specialty coatings, and electronics fabrication (where photoresists are foundational to IC manufacturing), making those the manufacturing niches most likely to feel this looming restriction most directly.
Taken together, the REACH authorization proposal touches a myriad of manufacturing sectors:
Plastics and polymer processing
Automotive components and manufacturing
Construction materials
Food packaging
Electronics manufacturing
Printing and coatings
Adhesives and sealants
Suffice it to say, this represents a significantly wider industrial footprint than a single-substance restriction typically carries. Because these four chemicals function as general-purpose additives—rather than narrow specialty inputs—their applications are spread out across a wider swath of industries and supply chains.
Why This Could Force Product Redesigns
REACH authorization is fundamentally different from an outright ban. In theory, a company can keep using an authorized substance if it successfully applies for and receives use-specific permission. In practice, however, authorization applications through REACH and ECHA are costly, time-consuming, and never guaranteed. Further, once a substance is on Annex XIV, downstream customers frequently push suppliers toward reformulation rather than risk depending on an authorization that could be denied, delayed, or granted with restrictive conditions. In other words, OEMs and other downstream stakeholders don’t want substances on the REACH Authorisation List in their products and components, and they’ll pressure their suppliers to pull them out of designs and full material declarations (FMDs).
Manufacturers using UV-326, UV-329, TPP, or Photoinitiator 379 in current formulations should be carrying out reviews of their bills of materials now, rather than after the European Commission publishes an official decision and the clock starts in earnest. Identifying every product, coating, or component where these substances appear—and understanding volume thresholds, exemption possibilities, and realistic substitution timelines—is the work that determines whether a redesign happens on your terms or under costly deadline pressure.
This is exactly the kind of substance-level exposure that's easy to lose track of across a multi-tier supply chain, especially when a chemical shows up as a minor additive rather than a headline material. Compliance software tool Z2 tracks REACH Candidate List and Authorisation List statuses at the component and substance level, allowing teams to see which parts of their BOMs are most exposed to these substances.
In addition, Z2’s team of experienced compliance professionals can also carry out supplier campaigning, canvassing entire manufacturing networks to confirm whether any of the four substances in question are in your supply chain. During this stage, Z2’s software serves as a workflow platform, allowing team members to track outreach status and progress, automate escalations, emails and other correspondence, and provide their customers with maximum visibility into their campaigns.
To learn about how Z2 can help businesses assess their exposure to these four chemicals and other substances regulated by REACH and ECHA, schedule a free trial with one of our product experts.
