Avient : IR Presentation – Baird and Morgan Stanley Investor Conferences – 11/10/2011 – 11/11/2011

AVIENT CORPORATION

I N V E S TO R M E E T I N G S

(NYSE: AVNT)

N OV E M B E R 2 0 2 1

DISCLAIMER

Forward-LookingStatements

In this presentation, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe" and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:

• Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;
• The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks;
• The current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows, including without any limitation, any supply chain and logistics issues;
• Our ability to achieve the strategic and other objectives relating to the acquisition of Clariant's Color business, including any expected synergies;
• Changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business;
• Fluctuations in raw material prices, quality and supply, and in energy prices and supply;
• Production outages or material costs associated with scheduled or unscheduled maintenance programs;
• Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;
• An inability to achieve the anticipated financial benefit from initiatives related to acquisition and integration working capital reductions, cost reductions and employee productivity goals;
• Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends;
• Information systems failures and cyberattacks;
• Our ability to consummate and successfully integrate acquisitions;
• Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and
• Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2020 under Item 1A, "Risk Factors."

The above list of factors is not exhaustive. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q,8-K and 10-K that we provide to the Securities and Exchange Commission.

Use of Non-GAAP Measures

This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAPfinancial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA.

Avient's chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources.

A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com.

The Company does not provide reconciliations of forward-lookingnon-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share, Adjusted Operating Income and Free Cash Flow, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, restructuring costs, environmental remediation costs, acquisition-relatedcosts, and other non- routine costs. Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information.

Avient acquired the Clariant Color business on July 1, 2020 (the "Acquisition Date"). To provide comparable financial results, the Company references "pro forma" financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date. Management believes this provides comparability of the performance of the combined businesses.

2 Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases.

WHO WE ARE - VISION, STRATEGY, CULTURE

Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

Examples include:

• Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high- performance materials that require less plastic
• Light-weightingsolutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation
• Breakthrough technologies that minimize wastewater, improve the recyclability of materials and advance a circular economy
• Composite solutions to support accelerated growth of 5G / fiber-optic infrastructure investment as the world demands greater and faster connectivity

Avient employs approximately 8,400 associates and is certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste.

3

OUR VISION

At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

OUR STRATEGY

Specialization

Differentiates us through unique value-creating offerings to our customers.

Globalization

Positions us to serve our customers consistently, everywhere in the world.

Operational Excellence

Empowers us to respond to the voice of the customer with relentless continuous improvement.

Commercial Excellence

Governs our activities in the marketplace to deliver extraordinary value to our customers.

OUR CULTURE

Core Values

Collaboration. Innovation. Excellence.

These core values, which begin with our individual decisions and actions, focus our attention on putting the customer first by creating genuine value through collaboration, innovation and an unwavering commitment to excellence. We will uphold these values with the utmost integrity in all that we do.

Personal Values

Integrity. Honesty. Respect.

These personal values begin with each of us-the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work.

WHAT WE DO: MATERIAL SCIENCE

Innovation is the lifeblood of a specialty company. We create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

We partner with Brand Owners / OEMs, processors and assemblers to enable their goals in applications like packaging, healthcare, consumer goods, transportation, wire & cable, building & construction and textiles. Our customers value the breadth of our solutions as we can tap into a broad array of raw materials to solve their specific needs. Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly. Lastly, our design capabilities ensure that the application is designed perfectly for the specific end use.

Challenge Accepted.

CUSTOM FORMULATION

4

WHY AVIENT WINS

At Avient, we've built a culture of winning and how we do so is unique, lasting and difficult to replicate. It's why customers choose us. And we have over 21,000 who do.

Whether it's an ambitious start-up bringing a new product to market, or a large, multinational OEM looking for consistency and reliability of global supply, Avient is built for long-term partnerships. Tenure of our relationships with multi-national OEMs exceeds 15 years. Big or small, we earn customers, and we keep them.

Speed to market is essential today, and Avient plays a crucial role in our customers' success. Our exceptional polymer scientists and design engineers are integral to their product development process. We iterate fast and often. Design times can be less than three days for colorants.

Ultimately, it's about delivery - on time, efficient, and to the exact quality specifications that our customers demand. With over 100 Avient production and distribution facilities, all operating with the rigor of Lean Six Sigma principles and excellence, we are proud to serve our valued customers wherever they need us. That's winning. That's Avient.

Deep Customer Relationships	Superior Design Capabilities
& Application Know-How	& Advanced Analytics
We sell solutions not commodities.	We iterate fast and often.

21,000+	>75% sales
	of
CUSTOMERS	ARE CUSTOMIZED SOLUTIONS
	TO UNIQUE SPECIFICATIONS

Global Footprint Strategically Aligned to Serve Customers

We produce locally, serve globally.

34

	39	22
9
• U.S. and Canada	• Europe, Middle East & Africa
• Latin America	• Asia

5