Clariant joins the Renewable Carbon Initiative

• Clariant joins the Renewable Carbon Initiative(RCI) to promote the use of renewable raw materials
• RCI aims to promote the transition from fossil carbon to renewable carbon for use in the chemical industry
• Joining the RCI demonstrates Clariant'scommitment to driving forwardinnovative sustainability practices, whereby promoting defossilization, circularityand abio-based economy are top priorities

MUTTENZ,MARCH 24, 2022

Clariant, a focused, sustainable and innovative specialty chemical company, today announced that it has joined the Renewable Carbon Initiative (RCI). The aim of the RCI is to support and accelerate the transition from the use of fossil carbon to the use of renewable carbon in the chemical industry. Switching to renewable carbon sources prevents additional fossil carbon entering the atmosphere and thus addresses a core problem of climate change.

"I am convinced that the chemical industry plays a central role in tackling climate challenge and in shaping progress toward a more circular and bio-based economy. This journey can only be achieved through strong commitment to sustainability-driven innovation, ambitious goals, and a close collaboration with partners along the value chain," said Conrad Keijzer, Chief Executive Officer of Clariant.

More than 70% of the greenhouse gas emissions can directly be related to additional fossil carbon that is extracted from the ground.¹ While complete decarbonization may be a feasible option for some sectors, organic chemistry will always depend on carbon since it is integral for the creation of chemicals and materials that are essential in almost all industries. The most promising solution is to reuse carbon already found in materials or in the atmosphere. That is why Clariant will join the RCI in propagating the use of viable alternative carbon sources, such as biomass, CO₂ and recycling streams. Only an accelerated shift to low carbon raw materials will help to prevent a further increase in atmospheric CO₂ that, due to it being a driving force in climate change, also presents one of the largest inherent threats to biodiversity on earth.

"Along with ambitious, science-based climate targets and transparent methods of tracking progress, Clariant has prioritized sustainability-driven innovation," Richard Haldimann, Chief Technology & Sustainability Officer at Clariant. "The switch to renewable raw materials, a sustainable bioeconomy and integrating circular economy principles are the pillars of our commitment. We continue to make great progress. Clariant has already developed technology for the creation and implementation of renewable carbon in many business areas."

Clariant offers a range of bio-based solutions. Its recently launched Vita range of bio-based surfactants offer a 100% Renewable Carbon Index score coming from a fully segregated supply chain, providing a viable alternative to their fossil-based counterparts. Another example are Glucamides- these surfactants are readily biodegradable and have a Renewable Carbon Index score of up to 96%. The company's Licocare RBW Vita range, used in plastics and coatings applications, are derived from a natural, non-food competing by-product of the rice oil production and are based on at least 98% Renewable Carbon Index content. Another innovative solution that Clariant offers is the sunliquid technology, which enables the valorization of agricultural residues for the production of cellulosic ethanol, an advanced biofuel that can be used as a drop-in solution for fuel blending and offers further downstream application opportunities into bio-based chemicals and sustainable aviation fuel. The bioethanol produced by the sunliquid technology process helps decarbonize the transport sector by providing up to 96% CO₂ savings compared to fossil fuel, and by as much as 120% if carbon sequestration is considered and used as part of the production process.

The membership in the RCI allows Clariant to expand on its own solutions in the field of renewable carbon as well as collaborate more closely with partners, suppliers and the industry at large in driving this matter forward. The RCI was launched in September 2020 and is led by the nova-Institute. Members include companies from start-ups to large enterprises as well as additional partners. The initiative aims to advance the switch from fossil carbon to renewable carbon in the chemical industry by reporting on the topic, initiating further action and facilitating exchange between key stakeholders.

¹nova-Institut GmbH - The Renewable Carbon Initiative, 2021

CORPORATE MEDIA RELATIONS Jochen Dubiel Phone [phone] [e-mail] (mailto:[e-mail]) Anne Maier Phone [phone] [e-mail] Ellese Golder Phone [phone] [e-mail]

INVESTOR RELATIONS Andreas Schwarzwälder Phone [phone] [e-mail] Maria Ivek Phone [phone] [e-mail] Alexander Kamb Phone [phone] [e-mail]

Follow us on Twitter (https://twitter.com/clariant), Facebook (https://www.facebook.com/ClariantInternational), LinkedIn (https://www.linkedin.com/company/clariant), Instagram (https://www.instagram.com/clariant_international/). This media release contains certain statements that are neither reported financial results nor other historical information. This document also includes forward-looking statements. Because these forward-looking statements are subject to risks and uncertainties, actual future results may differ materially from those expressed in or implied by the statements. Many of these risks and uncertainties relate to factors that are beyond Clariant's ability to control or estimate precisely, such as future market conditions, currency fluctuations, the behavior of other market participants, the actions of governmental regulators and other risk factors such as: the timing and strength of new product offerings; pricing strategies of competitors; the Company's ability to continue to receive adequate products from its vendors on acceptable terms, or at all, and to continue to obtain sufficient financing to meet its liquidity needs; and changes in the political, social and regulatory framework in which the Company operates or in economic or technological trends or conditions, including currency fluctuations, inflation and consumer confidence, on a global, regional or national basis. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this document. Clariant does not undertake any obligation to publicly release any revisions to these forward-looking statements to reflect events or circumstances after the date of these materials. www.clariant.com Clariant is a focused, sustainable and innovative specialty chemical company based in Muttenz near Basel/Switzerland. On 31 December 2020, the company employed a total workforce of 13 235. In the financial year 2020, Clariant recorded sales of CHF 3.860 billion for its continuing businesses. The company reports in three business areas: Care Chemicals, Catalysis and Natural Resources. Clariant's corporate strategy is led by the overarching purpose of 'Greater chemistry - between people and planet' and reflects the importance of connecting customer focus, innovation, sustainability, and people.

Attachments

• Clariant Media Release RCI 20220324 EN (https://ml-eu.globenewswire.com/Resource/Download/209c4926-cc5b-40bb-8099-bbc96828c533)
• Clariant Media Release RCI 20220324 DE (https://ml-eu.globenewswire.com/Resource/Download/93c9adb8-2083-4bf1-9594-3ca1078dd7dd)