Marshall Islands "export" ships (they're also the biggest import), so it's likely inflated like the Singapore's numbers. They have the third largest ship registry in the world.
Both Antigua and Tajikistan are tiny countries with tiny economies that export very little. If either country had even a single business or industry that struck up some kind of deal with the much larger, more resource-hungry economies of the UAE or Switzerland, then whatever they exported to those countries as part of that deal would then overshadow the piddly amounts they exported anywhere else. That's my best guess.
Ivory Coast probably exporting loads of coffee to the Netherlands...
I missed
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Latvia Lithuania
Croatia Slovenia
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Senegal Mali
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Togo Burkina Faso
Dominica St. Kitts & Nevis