Thai Optical Group Public Company Limited is a Thailand-based company engaged in the manufacture and distribution of plastic lenses and related products. The Company's products include organic lenses, which are standard lenses made from monomer, photochromic lenses, high index lenses and high impact resistance lenses; mineral lenses, which cover mineral 1.523 lenses, mineral 1.6 lenses and mineral 1.7 lenses, and prescription lenses. The Company is also a distributor of glass molds, used for casting plastic lenses. The Company also provides surface treatments of hard coating and anti-reflection coating services. The Company distributes its products to original equipment manufacturers (OEMs) and sells its products under its own brand, Excelite. Its subsidiary includes Thai Optical Industry Company Limited, manufacturing and distributing glass lenses, plastic lenses and glass molds.