Tumai is a Barcode and Marketing Officer of Zanzibar National Chamber Of Commerce since 2012. She is responsible in generating and marketing the barcode services for the local producers in Zanzibar as well as issuing Certificates of Origin for the products bound to be exported outside of Tanzania. In addition, Tumai supports ZNCC promotion activities such as trade fairs and exhibitions conducted by ZNCC, or co-organized in partnership with other stakeholders. She holds a Diploma in ICT & Accounting and Certificate of Business Administration, both from Zanzibar Institute of Tourism Development (ZITOD).