1. Executive summary

This week, China's titanium dioxide (TiO₂) export industry faces increasing trade-policy uncertainty in two important markets: Japan and the United Kingdom. Japan formally initiated an anti-dumping investigation into Chinese-origin rutile titanium dioxide on 16 October 2026, while the UK's Trade Remedies Authority (TRA) has proposed substantial anti-dumping duties on Chinese rutile TiO₂ following its preliminary investigation findings published on 7 October 2026.

The key difference is the stage of each proceeding. Japan has opened an investigation but has not yet imposed a TiO₂ anti-dumping duty under this case. The UK has published proposed duty rates, but the final decision remains pending. Neither development should be described as a confirmed final duty currently being collected under these specific proceedings.

These actions matter because rutile TiO₂ is widely used in paints, coatings, plastics, printing inks, and other industrial products. If either country ultimately imposes additional duties, Chinese exporters could face higher landed costs and reduced competitiveness. Exporters may respond by renegotiating prices, changing destination markets, or adjusting distribution strategies. Meanwhile, buyers in Southeast Asia and other markets should monitor whether increased competition from Chinese suppliers affects regional quotations.

The immediate priority for Chinese producers is to assess their exposure to both investigations, respond to requests for information where applicable, and avoid making pricing decisions based on proposed duties as if they were already final.

2. Japan: new anti-dumping investigation launched

On 16 October 2026, Japan's Ministry of Finance (MOF) and Ministry of Economy, Trade and Industry (METI) announced the initiation of a joint anti-dumping investigation into pigments and preparations based on rutile titanium dioxide originating in China. The application was submitted by the Japan Titanium Dioxide Industry Association on 7 August 2026. The authorities concluded that sufficient evidence existed to justify opening an investigation.

Japan investigation: key facts

Initiation date: 16 October 2026

Application date: 7 August 2026

HS code: 3206.11

Expected investigation period: Within 1 year, in principle

Source: Japan Ministry of Finance and Japan Customs.

The investigation covers rutile TiO₂ pigments and preparations containing at least 80% titanium dioxide by weight on a dry-matter basis, with a rutile crystal structure and particle size exceeding 100 nanometres. The official notice excludes Hong Kong and Macao from the definition of Chinese origin for this proceeding. The products are used in automotive coatings, premium architectural coatings, printing inks, masterbatches, and resins.

Japan's authorities will examine whether Chinese products were exported at dumped prices and whether those imports caused material injury to the Japanese industry. The investigation will include evidence collection and fact-finding involving Chinese companies and Japanese producers. An anti-dumping duty will be considered only after the authorities assess the evidence and make the relevant determinations.

Commercial implication: Chinese exporters supplying Japanese customers should prepare accurate sales, cost, pricing, and product data and closely monitor questionnaire deadlines. Japanese importers should also review their sourcing arrangements and understand the potential impact if provisional or final measures are introduced later. There is currently no verified final duty rate for this Japanese investigation.

3. United Kingdom: proposed anti-dumping duties and financial impact

The UK Trade Remedies Authority published its initial recommendation on 7 October 2026 in case AD0086, following an investigation initiated on 3 March 2026. The applicant was Tronox Pigment UK Limited. The TRA concluded that Chinese rutile TiO₂ was being dumped in the UK and that there was an imminent threat of injury to the UK production industry. The proposal is for a five-year measure.

Proposed duty rates

Cooperating exporters

48.29%

Minimum duty of £0.665/kg, equivalent to £665/tonne.

Other exporters

63.66%

Minimum duty of £0.876/kg, equivalent to £876/tonne.

Sources: UK TRA

These are proposed rates. The applicable duty would be whichever of the percentage-based amount or the specific minimum generates the greater duty revenue.

The TRA also reported that Chinese TiO₂ import volume in May 2026 was more than 299% of the May 2025 volume. It attributed the increase partly to expanded Chinese production capacity and trade restrictions in other markets, including the EU, Brazil, India, and Saudi Arabia. The UK industry was reported to employ more than 570 people.

For illustration, consider a hypothetical customs value of £1,000 per tonne:

This calculation excludes freight, insurance, VAT, ordinary customs duties, and other costs. It is not an actual customs assessment or a forecast of final UK prices.

Current procedural status

The UK consultation deadline is 26 October 2026. Interested parties can submit comments on the initial findings before the TRA makes its final recommendation to the Secretary of State for Business and Trade. The final government decision will determine whether the proposed measure is implemented.

For Chinese producers, this creates an immediate commercial consideration: quotations and contracts for UK deliveries should account for the possibility of additional duties without assuming that the proposal has already become law.

4. Comparison: Japan versus the UK

Sources: Japan Customs and the Japanese ministries; UK TRA.

The two proceedings are separate. Japan's investigation does not automatically adopt the UK's proposed duty rates, and the UK decision does not determine the outcome of Japan's investigation.

5. Market outlook and implications for China

Short-term outlook: the next 1–4 weeks

• Exporters may become more cautious with Japan-bound orders. Japanese customers may ask for additional price protection or seek clarity on whether future imports could be subject to provisional or definitive duties. Chinese producers should prepare the requested evidence and monitor the investigation calendar.
• UK-bound quotations may face greater uncertainty. The proposed UK duties are large relative to the value of a tonne of TiO₂. If adopted, they could substantially increase landed costs and reduce the competitiveness of affected Chinese products. Before the final decision, however, the precise commercial outcome remains uncertain.
• Competition may intensify in other destinations. If Chinese exporters redirect some UK- or Japan-bound supply, buyers in Southeast Asia and other markets could receive more competitive offers. This is a plausible scenario, not a confirmed shipment trend. Freight costs, domestic demand, and other countries' trade measures will determine the actual effect.
• No reciprocal Chinese TiO₂ measure is confirmed by these sources. The Japanese and UK actions concern imports originating in China. They are not evidence that China has imposed anti-dumping duties on Japanese or UK-origin TiO₂. Any such claim would require a separate formal notice from China's Ministry of Commerce.

Recommended actions for importers and exporters

• Check whether each product meets the precise legal definition in the relevant investigation.
• Review export contracts, delivery schedules, price-validity periods, and responsibility for changes in import duties.
• Monitor UK and  Japan Customs and METI for questionnaires, deadlines, and any subsequent provisional measures.