Koh-i-Noor Hardtmuth, established in 1790, is a Czech stationery company known for its wide range of art materials, including pencils, colored pencils, and drawing accessories, as well as writing implements and office products. They have four factories in the Czech Republic and one in Bulgaria, with products exported to over 90 countries. KOH-I-NOOR HARDTMUTH has a history of innovation, including the invention of artificial pencil lead and machine-made pencils.

Koh-i-Noor offers a wide range of graphite pencils, including the classic yellow pencil 1500, which won the Grand Prix in Paris in 1900. They are known for their high quality and variety of degrees of graphite, including woodless and clutch pencils.