Trade Secret was a chain of clothing, accessories and home furnishing stores operated by TJX Companies and had 35 stores across Australia by April 2017.

The stores were located in Sydney, Melbourne, Brisbane, Canberra, Newcastle, Wollongong, Cairns, Townsville, Toowoomba, Albury, the Sunshine Coast and the Gold Coast.

On 3 February 2017,[2] they announced on their website that they would soon be rebranding all existing locations as T.K.

[citation needed] TJX acquired Trade Secret for AUD$80 million from Gazal Corporation in 2015.

[4] Parent company TJX also operates Home Secret, a 'sister' store of Trade Secret, which carries home furnishings.