European Commission Officially Adds UV-328 to POPs Control List

Jul 23, 2025

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On July 15, 2025, the European Commission adopted an amendment to Regulation (EU) 2019/1021 on persistent organic pollutants (POPs), inserting the chemical UV-328 into Annex I, thereby prohibiting its manufacture, use and trade and laying down specific exemptions together with transitional arrangements.

Background

UV-328 is an ultraviolet-light stabiliser widely used in coatings, plastics, automotive parts and aerospace materials. In May 2023, the eleventh meeting of the Conference of the Parties to the Stockholm Convention (SC-11) decided to list UV-328 in Annex A (elimination) with certain specific exemptions. The Council of the European Union endorsed this decision through Council Decision (EU) 2023/1006. The present EU-level legislative act implements these international obligations.

Control Measures

The following entry is added to Part A of Annex I to Regulation (EU) 2019/1021:

Substance

CAS No

EC No

Specific exemption on intermediate use or other specification

‘2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol

(UV-328)

25973-55-1

247-384-8

For the purposes of this entry, Article 4(1), point (b), shall apply to concentrations of UV-328 equal to or below:

(a)	100 mg/kg (0,01 % by weight) from 4 August 2025;

(b)	10 mg/kg (0,001 % by weight) from 4 August 2027;

(c)	1 mg/kg (0,0001 % by weight) from 4 August 2029;

where they are present in substances, mixtures or articles.

By way of derogation, the placing on the market of UV-328 present in articles and the use of such articles shall be allowed for the following purposes:

(a)	in land-based motor vehicles, until 4 August 2030;

(b)	in industrial coating for land-based motor vehicles, engineering machines, rail transportation vehicles, and in heavy-duty coatings for large steel structures, until 4 August 2030;

(c)	in mechanical separators in blood collection tubes, until 4 August 2030;

(d)	in triacetyl cellulose film in polarisers, until 4 August 2030;

(e)	in photographic paper, until 4 August 2030;

(f)	in civilian and military aircrafts, until 4 August 2030;

(g)

in spare parts for any of the following:

(i)	land-based motor vehicles;

(ii)	stationary industrial machines for use in agriculture, forestry and construction;

(iii)

liquid crystal displays in instruments for analysis, measurements, control, monitoring, testing, production and inspection, other than for medical applications;

where UV-328 was initially used in their production, until the end of their service life or 31 December 2043, whichever comes earlier;

(h)

in spare parts for any of the following:

(i)	liquid crystal displays in devices within the scope of Regulation (EU) 2017/745, and within the scope of Regulation (EU) 2017/746 of the European Parliament and of the Council;

(ii)	liquid crystal displays in instruments for analysis, measurements, control, testing, production and inspection;

where UV-328 was initially used in their production, until the end of their service life;

(i)	in spare parts for civilian and military aircrafts where UV-328 was initially used in their production, until 31 December 2030.

3.	Articles containing UV-328 already in use in the Union before or on the date of expiry of the relevant exemption laid down in point 2(a) to (i) may continue to be used.

Further Information

Official Journal

Related Inventories

EC Inventory: EINECS/ELINCS/NLP

EU REACH Substances of Very High Concern (SVHC) List

EU REACH Restriction List (Annex XVII)

EU List of Approved Biocidal Active Substances (BPR)

EU List of CMR Substances

European Commission Proposes Delay of New CLP Labelling Rules: Two-Year Postponement for Certain Requirements

EU Amends POPs Regulation, Extends Transition Period for PFOA-Containing Firefighting Foams and UTC Limits

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