This is complete rubbish.
This is the UN"s list of Least Developed Countries from UNCTAD (United Nations Trade and Development).
unctad.org/en/Pages/ALDC/…
All of these countries automatically qualify for the EU's Everything But Arms programme (EBA) under which all of their exports enter the EU completely tariff-free and quota-free.
And here, from UNCTAD, is a document which describes each of those GSP programmes and the beneficiary countries.
unctad.org/en/Publication…
The text here is from a report from the Executive Director of the Centre for Policy Dialogue in Bangladesh.
un.org/en/development…
The ACP group was established in 1975 at the Lomé Convention and meet regularly with the EU.
acp.int/content/commun…
The EU has FTAs with 69 countries that are currently in force or in the case of Japan from 1/2/2019.
tfocanada.ca/news.php?item=…
Tate & Lyle, the American owned sugar refining corporation, who have a single sugar-refining facility in Silvertown reduced their imports of sugar from the ACP countries, but look where that sugar goes now.