PT Umbra Prasia, established in 1994, is a leading manufacturer of glass tableware and containers based in Sidoarjo, East Java, Indonesia. The company focuses on producing high-quality glassware using the latest technology, supported by a well-trained workforce. Umbra Prasia specializes in products such as tumblers, plates, bowls, mugs, and promotional glassware for both domestic and international markets. The company emphasizes strict quality control, excellent customer service, and continuous research and development to meet diverse market needs.