Yes. According to Texas Chicken, all of its crispy meals use halal chicken, and it deals only with suppliers certified halal by SASO, the Saudi standards and quality organization, or by recognized halal authorities outside the Kingdom. Nothing non-halal is permitted in its facilities, and there are always at least two Muslim employees in the kitchen.
Imported products hold certification from their country of origin's halal authority, which is recognized by the SFDA (Saudi Arabia's food and drug regulator), and all suppliers of raw materials sign a declaration committing to halal requirements across manufacturing, transport and storage.
Source: Texas Chicken: halal