The importer, Ukraine-based Lekhim, cited, among other things, delays in obtaining an export license from the Chinese government.
Ukraine's plan to roll out a Chinese-made coronavirus vaccine from next month faces possible delay because of regulatory hold-ups in a further risk to the country's slow-moving vaccination program.
Reuters reported this with reference to a letter written by the importer.
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In the February 3 letter, seen by Reuters, the importer, a partner of vaccine developer Sinovac Biotech, asked Ukrainian authorities to be allowed to delay the first shipments of its COVID-19 vaccines to April.
The importer, Ukraine-based Lekhim, cited delays in obtaining an export license from the Chinese government and the late adoption by Ukraine's parliament of a special vaccine registration law.
"The consequences of these events were the delay in the coordination of the delivery schedule between JSC Lekhim and Sinovac Biotech and the postponement of the delivery of the vaccine in Ukraine," said the letter.