Thank you for the question. I'll give you a preliminary answer and then ask my colleagues to elaborate.
I think there are a variety of reasons. Other markets are far away. Other markets do not have the history of wood frame construction that is common in North America. Teaching and informing consumers in these countries how to build wood frame construction and how to use softwood lumber in the construction industry takes time. A lot of money and effort over successive governments has been put into market development overseas, outside of North America, to create the conditions where Canadian softwood lumber exports would be more successful in those markets.
I think we've seen benefits from those efforts, but it is a heavy lift. This is not something they are accustomed to using in the same way we do. It requires building codes, educating builders and so on.