CSA.

The logo reads CSA above Portugal and includes a waving flag-like version of the design. Jorge Candeias suggested that this might represent the Portuguese branch of a foreign company; the identity is not established.

No independently identified legal company or jurisdiction was established. Mirror repetition of the same attribution is not independent verification, and direct page attempts failed. The located FOTW material repeats the unexpanded CSA Portugal logo and explicitly describes foreign-branch identity as a guess.