ARGO Customs brokers are doing B13 export declaration form to UKRAINE for free.
We are using the CERS portal and can assist to obtain CBSA ID authorization for export.
ARGO Customs Brokers are cooperating DIRECTLY with the local Customs Brokers in Lviv (West Ukraine Customs office) :
http://korpus.lviv.ua/eng/index.html
And our Ukrainian partners will assist you with your imports to Ukraine.
Their local 24/7 emergency Phone: +38 067-314-6636