Chi Tu (also spelled Chihtu, Chitu or Ch-ih-t'u; Sanskrit: Raktamaritika or Raktamrittika; Chinese: 赤土國; pinyin: Chì-tǔ-guó; lit.

The Sui dynasty annals describe an advanced kingdom called Chi Tu in 607, when Chang Chun was sent as an ambassador there.

[2] According to Chinese records, Chi Tu was built by kit mow (Mon-Khmer) peoples who sailed from the coast of Funan (southern Indochina) that eventually intermarried with the local population.

Chi Tu along with Langkasuka, Kedah and others were early important trade centers (approximately 100 BC to 700 AD).

They would get local porters to transport their goods, using rafts, elephants and manpower along the early transpeninsular routeway and part of the ancient spice route.

The founding of Sri Wijaya Mala was 667 BC with its capital called "Valai", and it was situated along the upper Kelantan river of Pergau, known for its rich gold mines.