Complex sentence: For now, BZP and other analogous piperazines are still legal and uncontrolled in several Western countries, most notoriously Canada but Canadian suppliers will usually decline foreign orders even if they originate from countries where BZP is not regulated.
Split into simpler sentences: For now, BZP and other analogous piperazines are still legal and uncontrolled in several Western countries, most notoriously Canada. However, Canadian suppliers often decline foreign orders even if they originate from countries where BZP is not regulated.