BANGKOK, Feb 10 (Reuters) - The strengthening of the baht is a risk to Thailand's economy at the moment as it reduces export volumes, the finance minister said on Friday. The business sector needs to hedge against foreign exchange risks, Finance minister Arkhom Termpittayapaisith told a ministry event. (Reporting by Kitiphong Thaichareon Writing by Orathai Sriring Editing by Ed Davies)