Simply replace the unfilled areas such as "" and "[date]" with your information.
We are happy to announce that our company is now incorporated. We are no longer registered as a [partnership/proprietorship], but as a corporation. Our company has now been registered as [full incorporated name]. Please be aware that our new [GST/Fed ID/etc.] number for everything related to finances and accounting is now [#].
Our incorporation will not affect our operations or the [services/products] that we offer. The only significant change is our newly incorporated name and the new tax number assigned to it. Our organization believes that everybody will ultimately benefit from this corporate structure change as we continue to grow in the [name of industry] industry.
Our organization intends to not only maintain our current high level service, but to keep excelling going forward. We could not have gotten to where we our today without your dedicated efforts, and we thank you for it.