They mention that they work with suppliers which are located in countries where Modern slave labour is more of a "concern", however, they haven't mentioned specific countries, but they clearly understand that there could be a case of modern slave labour in these countries and for A Gomez, working with countries where modern slave labour is a concern is risky for the company, however, they take this on and prevent slave labour from happening.
No countries or areas mentioned where the risks of slavery are the greatest