Turkey's Sefine Shipyard and TUBITAK signed a strategic cooperation agreement on July 13, 2022, at the premises of TUBITAK SAGE.

Turkey's Sefine Shipyard has showcased the Turkish Navy's future fleet replenishment and combat support ship, also known as the DIMDEG project (Denizde İkmal Muharebe Destek Gemisi - meaning Replenishment at Sea and Combat Support Ship), at the DIMDEX 2022 exhibition, which is being held March 21-23 in Doha, Qatar.

At the DIMDEX 2022 defence exhibition in Doha, Qatar, Turkey's Sefine shipyard unveiled its Constellation-class unmanned fast-attack vessels that can be configured for ASW and ASuW.

Sefine Shipyard held the steel-cutting ceremony for the first KCR-70M fast attack craft for the Indonesian Navy.

On May 20, 2024, the Turkish Sedef Shipyard announced the keel laying of the third I-class frigate, the future TCG İzmit (F-517), for the Turkish Navy.

During the Distinguished Observer Day phase of the Turkish Navy's Denizkurdu-II exercise on May 11, 2024, both MARLIN and Albatros-S USVs were observed as participants in the naval parade.

Turkish defence company Kayaci Defence showcased the OKHAN unmanned surface vessel for the first time during DIMDEX 2024.

At the WDS 2024 in Riyadh, Saudi Arabia's NCMS exhibited the MARLIN USV, which was developed by the Turkish companies Aselsan and Sefine.

On January 19, 2024, Turkish Navy inducted TCG Istanbul (F-515), 2 new logistics ships and the unmanned surface vessel MARLIN.

Turk Loydu Conformity Assessment Services Corporation recently unveiled a new multipurpose mini-submarine project developed by DATUM Submarine Engineering Company.