Nuveen Premium Income Municipal Fund 4 Inc

Texxon Holding Limited, through its subsidiaries, engages in the supply chain management business in the People's Republic of China. It operates through two segments: Supply chain trading and Plastic manufacturing. The company sells basic chemicals, including alcohols and aromatic chemical raw materials used in production of fabrics, beverage packaging, coatings, resins, and other downstream products. It also provides plastic particles, such as polyolefin and chemical polymers, used in pipelines and pipes for infrastructure projects, daily or food-grade packaging, agricultural membranes, national grid wires and cables, injection molding parts for new energy vehicles, photovoltaic power generation, medical devices, aerospace, and other high-tech industries. In addition, the company offers black metal for concrete reinforcement and structural applications, manufacturing industry steel for automobiles, pipelines, machinery, and power equipment, and steel composite materials for aerospace and engineering applications. Further, it provides cotton for clothing, bedding, curtains, home decor, ornaments, and packaging materials. Texxon Holding Limited was founded in 2011 and is based in Shanghai, the People's Republic of China.