加拿大采购需求：污水处理设计、污水处理咨询、污水处理项目投资

I hope this message finds you well. I'm reaching out regarding an outstanding invoice related to the participation of your representative in our recent conference. It appears that the invoice has been viewed multiple times, yet it remains unpaid. I understand that sometimes things can get lost in the shuffle, but it's crucial for us to resolve this matter promptly. Could you please check on this and provide an update? Given the nature of our collaboration, I'm sure we can sort this out quickly. Looking forward to hearing from you soon so we can move forward. Thanks for your attention to this issue!