Cross referencing the results system, and the IPC database...
competed at Tokyo 2020, but don't appear in the results system for Paris 2024. Faroe Islands is then set to be unrepresented at the Summer Paralympic Games for the first time since 1984.
return after missing Tokyo 2020. Bangladesh last competed at Beijing 2008. Solomon Islands and Vanuatu last competed at London 2012. Democratic Republic of Timor-Leste; Macao, China; Myanmar; Tonga; Trinidad and Tobago last competed at Rio 2016.
Disclaimer: I checked your question on the fly, so there's a chance I missed an NPC for either category.