Tema International School was invited to participate in the annual Ghana Model United Nations Conference hosted by Ghana International School, and we CONQUERED! The TIS delegates stood tall during the 2023 GISMUN conference attended by 13 schools. Thus becoming the toast of the conference.
Below are excerpts of the TIS Experience at the conference
| Name of Delegate | Committee | Award |
| Bruhan-Deen Hussein – G9 | Arab League | Best Delegate |
| Allyson Achiampong – G11 | UNHCR | Best New Delegate |
| Evaristus Amarh – G11 | Pan African Parliament | Best New Delegate |
| Brianna Boateng – G10 | World Health Organization | Best Delegate |
| Phebe Tweneboah – G11 | UNICEF | Best Delegate |
| Farah Agoro Kerim Dikeni – G11 | UN Women | Honourable Mention |
| Jenelle (Edudzi) Mac-Deh – G11 | UNICEF | Honourable Mention |
| Chris Quarshie – G12 | Council of Disarmament | Honourable Mention |
| Nana Aisha Hussein – 11 | Crisis Committee | Honourable Mention |
| Kiros Essilfie – G10 | UN Women | Honourable Mention |
