Sorry, reading fail! But the linked report is indeed vague:
"Colistin is manufactured by two companies in India but the country is also importing at least 150 tonnes of the drug each year."
They appear to have found some customs documents, that's all. Googling, some article says "China was estimated to be using 8000 tonnes of colistin per year of the global production of 12 000 tonnes" a few years ago. So it would not be surprising if this import were only 10 percent.
Also: TFA says "There are currently no regulations that would prevent such export to the UK on hygiene terms, except for those agreed under the EU. Any regulations to be negotiated after Brexit might not"
while the article linked says "the UK uses less than a tonne a year of colistin in agriculture."
"Colistin is manufactured by two companies in India but the country is also importing at least 150 tonnes of the drug each year."
They appear to have found some customs documents, that's all. Googling, some article says "China was estimated to be using 8000 tonnes of colistin per year of the global production of 12 000 tonnes" a few years ago. So it would not be surprising if this import were only 10 percent.
Also: TFA says "There are currently no regulations that would prevent such export to the UK on hygiene terms, except for those agreed under the EU. Any regulations to be negotiated after Brexit might not"
while the article linked says "the UK uses less than a tonne a year of colistin in agriculture."
So it's not banned now, it seems!