A video appeared on the network shows the 2A36 Giatsint-B 152-mm field gun of the Armed Forces of Ukraine. Presumably, it is Finish Giatsint-B field gun under the designation 152K89. According to open source, Finland has 24 guns but it is not disclosed how many of them has been sent to Ukraine.
Read more: Romania Approved the Transition to the F-35 Fighters, However It Will Take a Long Time to Wait
Should be recalled that it was reported that Finland could send the 2S5 Giatsint-S self-propelled guns in September, 2022 (the Finnish army had 18 units of such self-propelled guns as of 2010). But the supply wasn’t officially confirmed or disapproved.
Moreover, according to The Military Balance, Finland has 234 D-30 122-mm howitzers, 36 2C1 Gvozdika self-propelled guns and 3 Buk SAM system batteries (for 18 launchers).

As Defense Express reported earlier, Germany and Finland Deliver Engineering Tanks to Ukraine: Leopard 2R and Dachs.
Read more: Bulgaria Doesn’t Consider Free Mig-29 Fighter Supply, But Negotiates On Replacement