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Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. It also provides DecisionDx-UM, a risk stratification GEP test. The company also offers its products to the skin cancer and gastroenterology markets.
Tronox Holdings PLC is a vertically integrated manufacturer of TiO2 pigment. It operates titanium-bearing mineral sand mines and beneficiation and smelting operations in Australia & South Africa to produce feedstock materials that can be processed into TiO2 for pigment, high-purity titanium chemicals, including titanium tetrachloride, and ultrafine TiO2 used in certain specialty applications. TiO2 and titanium feedstock, are used to produce paints and coatings, as well as plastics, paper, and printing ink. It has three pigment production facilities in the United States, the Netherlands, and Western Australia and three mining operations in Western Australia and South Africa. Europe, the Middle East, and Africa regions contribute the majority of revenue.