Cape Verdeimports of Heavy water (deuterium oxide) was $0.15K . Cape Verdeimported Heavy water (deuterium oxide) from Portugal ($0.15K )Cape Verdeimports of Heavy water (deuterium oxide) was $0.15K . Cape Verdeimported Heavy water (deuterium oxide) from Portugal ($0.15K ).Heavy water (deuterium oxide) exports by country in 2019