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PT Platinum Ceramics Industry is an Indonesian company that manufactures ceramic, glazed porcelain, and unglazed tiles. The private company is based in Central Jakarta, Indonesia.

PT Shindo Tiara Tunggal provides investment services for manufacturing industries. The private company is based in Surabaya, Indonesia. The Indonesian company was founded by Shindo Sumidomo.

PT Semestanustra Distrindo is a private company based in Indonesia that engages in the distribution of food products. The Indonesian company was founded by Shindo Sumidomo.

Maspion Group is an Indonesian large-scale company with over 30,000 employees spread across five industrial areas in East Java and Cibitung, Indonesia. The private company is based in Surabaya, Indonesia. The company began as a kitchen equipment manufacturer in 1967 and has since expanded into eight main business categories, including consumer products and services, construction and building materials, commercial and industrial properties, banking, trade and distribution, infrastructure and energy, and various other businesses. Maspion Group has attracted the attention of multinational companies to become business partners. The CEO of the company is Alim Markus.