There are no official statements other than Bulgaria which rejected. The Bulgarian PM called it “absurd.”
For Poland and Slovakia, there are press reports

Poland: www.polityka.pl/tygodnikpolityka/swiat/2156501,1,mysliwce-dla-ukrainy-to-nie-takie-proste.read

Slovakia: domov.sme.sk/c/22850575/ukrajina-vojna-slovensko-vojenska-pomoc-stihacky.html

Bulgaria: www.novinite.com/articles/214004/PM%3A+Reports+of+Bulgaria+Giving+Away+its+Fighter+Jets+to+Ukraine+are+Absurd%21

Daca va place ce scriem, daca va place cum scriem, daca stiti ca am ramas din ce in ce mai putini oameni verticali si cu coloana, puteti sustine munca noastra.