Channels for Disclosure of Information

We intend to announce material information to the public through filings with the Securities and Exchange Commission, our investor relations page, blog posts on our website, press releases, public conference calls, webcasts, our Twitter feed (@SlackHQ), Stewart Butterfield’s Twitter feed (@stewart), our Facebook page, and our LinkedIn page.

The information disclosed by the foregoing channels could be deemed to be material information. As such, we encourage investors, the media, and others to follow the channels listed above and to review the information disclosed through such channels. Any updates to the list of disclosure channels through which we will announce information will be posted on our investor relations page.