Built to be readable, keyboard-friendly, and mobile-safe.
The site uses semantic HTML, visible focus states, a skip link, and a high-contrast editorial layout.
The layout is built with readable contrast, clear headings, and responsive spacing so the site works on phones, tablets, and desktops without special handling.
If you find an issue with keyboard navigation, color contrast, or page structure, contact the editorial desk and we will review it.
Accessibility in practice
Accessible publishing is an ongoing quality check, not a one-time visual treatment. Headings should follow a logical order, links should describe their destination, images should have useful alternative text when they convey information, and decorative images should be ignored by assistive technology.
Keyboard users should be able to reach navigation, search, filters, and article links in a sensible order. Text should remain readable when enlarged, colour should not be the only way to communicate status, and responsive layouts should avoid forcing horizontal scrolling.
If a page creates a barrier, send the URL and describe the device, browser, assistive technology, or input method involved. The desk can then reproduce the issue and record the correction.
How to read this page
Use the information here as part of the publication’s wider reading desk. Follow the related archive and topic links when you need current reporting, supporting context, or a more specific route into the chemical value chain.
Pages are reviewed as the site develops. Readers should check dates, source material, and the final business or legal details before relying on this information for a commercial, technical, regulatory, or publishing decision.