Currently, eight countries including Canada have signed the convention or the protocol, subject to ratification. Signature doesn't mean ratification. It's just a signal of intent.
The important point to remember here is that this convention is a contributory convention, which means there are certain requirements for it coming into force. One of those requirements is not just the number of states that ratify the convention, but also the amount of contributing cargo that will be part of the fund. There's a magic number in the convention, and that's 40 million tonnes.
Once you have those numbers, 12 countries and 40 million tonnes of contributing cargo, being reported by those countries to support the fund, then you trigger the entry into force. That's how it works.
There are a number of countries, particularly in the European Union, that have very large ports that receive a significant amount of HNS, Rotterdam, for example, that could make up almost that 40 million tonnes right there.