Despite sanctions and limitation from both countries, Ukrainian companies continue active cooperation with their partners from Russia.
The largest exporters to Russia are Azovstal (5.5-6 billion UAH in 2017), Pokrovskoye Mine Group (1.5-2 billion UAH) and ArcelorMittal Kriviy Rih (1-1.5 billion UAH).
Zaporozhkoks is also on the list.
At the same time AMKR supplies only 3% of its products to Russia. (Ukrainian metal)