Perhaps your citizens do not like doing business with foreigners, or those markets are too unpredictable to reliably make a profit. Your government establishes a public entity which acts as a amalgamator / middleman - this would be analogous to Fannie Mae or Freddie Mac which does something like this for mortgages. This entity attends to tariffs, transport, markets and so on. It guarantees a buyer for the products of your domestic manufacturing and then finds markets for their products.
This is nice in that a public entity deals with the hassle of exports. Your manufacturers only have to deal with one buyers. It is nice in that importers only have to worry about one supplier, and one that is not going to go out of business because it is a government agency.
A problem is that there is less direct market pressure from end consumers on manufacturers as regards quality. Your middleman will need to have standards it imposes - and that will be another benefit of your system as regards importers of your products.
Weaken your currency.
Services such as you describe are largely for domestic consumption. By weakening your currency you will make foreign currencies more attractive, and exports are the way to obtain these.
China keeps its currency weak and by doing so helps its export market.
The cheap Yuan gives China an unfair advantage in the export market,
encouraging the United States’ growing trade deficit with China and
keeping goods in markets like India from competing locally.
The Chinese have got some way of doing this that does not cause inflation for them, and I don't understand it. Inflation is an easy way to do the same thing - print money, and then foreign currencies will be increasingly attractive / more valuable.
A fiction about these things does not really grab me and shake me. The interesting aspect of your fiction is the premise that if you want people to do A, but they are doing B, make B less attractive and then they will do A. In fact they will probably figure out a different way to do B, or they will do C and K. If you want people to do A you need to make A more attractive.