The Periplus lists pepper and malabathrum as exports of the Malabar coast. Malabathrum was possibly:

1. Ships came for pepper and malabathrum. 2. Malabathrum may be cinnamon. 3. Pearls, ivory and silk were also exported. _Source: syllabus Themes in Indian History I, Theme 2, Kings, Farmers and Towns, sections on land grants, towns, trade and coins._