Yes. I have the 2010 amendments here. They clearly state that a Jordanian national must be the founder of a trade union. Foreign workers cannot create their own unions. That is a violation of freedom of association. It also does not appear that they can be in the leadership of a trade union, which is also an issue. What is different between now and then is that then foreign migrant workers were excluded from being in trade unions, period. Now that has changed.
On March 29th, 2012. See this statement in context.