We import commodity 9608200000 fibre pens from China at a rate of 3.7% duty. What will the duty rate be under WTO terms, please?
3.7% is the bound WTO duty rate; thus there will be no change after Brexit according to the current WTO schedule
On the same subject, but in relation to waste imported to the UK, specifically 8548109100 scrap lead acid batteries, is the duty post Brexit still going to be Zero?
According to the WTO schedule (https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/762822/UKs_Goods_Schedule_at_the_WTO.pdf), the final bound rate for 8548.1091 remains at zero.