Yes, Just a scant ten months after the beginning of the civil war in Syria Britain sold Syria chemicals that could be used to make nerve gas.
Export licences for potassium fluoride and sodium fluoride were granted months after the bloody civil war in the Middle East began.
The chemical is capable of being used to make weapons such as sarin, thought to be the nerve gas used in the attack on a rebel-held Damascus suburb which killed nearly 1500 people, including 426 children, 10 days ago.
It's not clear which MPs knew this in the lead up to the vote against intervention in Parliament, but it seems like it would have been pertinent information. It also isn't clear, and probably impossible to know, if the chemical weapons used in the attack were created with chemical sold by Britain to Syria.
UPDATE: After feedback from numerous people who clearly know whatthe hel they're talking about I realize that I fell into a media hack talking points sham. I'm gald this isn't on the rec list and if those of you who recced it could kindly remove your rec I would thank you. These were "ingredients" to chemical weapons only in the broadest sense of the word. Saying it as such would be like saying that selling Syria lead was sellingthem ingredients for bullets, technically true, but practically besides the point.
Also, these chemicals are baned only under economic sanctions and not under dual use sanctions, to my knowledge. Which means tehy aren't banned because of their specific uses and only banned because of their general economic uses.
I apologize for the misleading diary, I'm leaving it up so that these updates are here.
Further update: Apparently there were no actual sales of these chemicals, just some approvals of sales. I don't have confirmation of that other than Lib Dem FoP. Since there were no records of sales mentioned in the article I assume it's true.