Chai Sacco Society Limited was registered in 1973 to offer financial services to KTDA employees both at the factories and Head Office.
In 1999, Front Office Service Activity (FOSA) was started and has evolved to a fully-fledged Deposit Taking Society. In addition to Nairobi and Litein branches, the Sacco opened three new branches in 2016 in Nkubu, Kisii, and Mombasa. Two (2) Marketing Offices have also been opened in Olenguruone and Silibwet towns. The Society intends to open more branches and marketing offices countrywide.
The common bond was opened in 2005 to include members from well-established business organizations and tea farmers. The society has widened her membership to include business people, investors, and savers beyond the KTDA employees
The Society has been recognized internationally by the World Council of Credit Unions (WOCCU) in Micro-Finance Expansion Programme (MFI) among other sixteen SACCOs in the country as a model for others. The Society has also been selected by Micro-Save Africa in product Development Programme from micro enterprises to assist the organization in product development process.