The agreement between the UK and Ukraine contains a provision for new ship

According to information published by Ukrainian Military Portal on November 25, 2021, the agreement between Ukraine and the United Kingdom to boost the capacity of Ukraine's Naval Forces capabilities contains a provision on joint production of a frigate that could be a Project 58250 (or Volodymyr Velykyi class) corvette.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Artist rendering of Project 58250 corvette (Picture source: Hak3)

The Volodymyr Velykyi class or Project 58250 is a planned class of multipurpose corvettes ordered by the Ukrainian Navy.

The new project was developed in 2008 by State Research and Design Shipbuilding Center. From the beginning of the program, there was a discussion of about 10 such ships.

Construction started as planned in 2011 with planned launching in 2012. The project suffered many delays and was stopped in 2014 due to Russian military intervention. In the spring of 2018, the commander of the Ukrainian Navy said that there is no funding to continue the construction of the ship.

The Volodymyr Velykyi class will be armed with one 76/62 OTO Melara naval gun, one Dual 35 mm Oerlikon Millennium close-in weapon system, two 4-cell Neptune anti-ship missile, sixteen cells for Dnipro surface-to-air missile, and two MU90 Torpedoes.

The Rheinmetall Oerlikon Millennium Gun or Rheinmetall GDM-008 is a close-in weapon system designed by Rheinmetall Air Defence AG for mounting on ships. It is based on the 35/1000 revolver gun land-based air defense system and uses AHEAD ammunition.