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LyondellBasell is a petrochemical producer with operations in the United States, Europe, and Asia. The company is the world's largest producer of polypropylene and is also a major producer of polyethylene and propylene oxide. Its chemicals are used in various consumer and industrial end products. Well over half of LyondellBasell's production comes from its North American operations.
Duolingo Inc is a technology company that develops mobile learning platform to learn languages and is the top-grossing app in the Education category on both Google Play and the Apple App Store. Its products are powered by sophisticated data analytics and artificial intelligence and delivered with class art, animation, and design to make it easier for learners to stay motivated master new material, and achieve their learning goals. Its solutions include The Duolingo Language Learning App, Super Duolingo, Duolingo English Test: AI-Driven Language Assessment, Duolingo For Schools, Duolingo ABC, and Duolingo Math. It has three predominant sources of revenue; time-based subscriptions, in-app advertising placement by third parties, and the Duolingo English Test.