The volume of imports and exports handled at the Sihanoukville Special Economic Zone (SSEZ) notched up more than $217 million in the first month of 2022, marking a 45.64 per cent rise year-on-year, according to a statement released by the operator. This follows a 16.41 per cent increase to $149 million in January 2021, from $128 million in January 2020, company statistics show.