It's one of the corporations the WTS formed in 2000.
You will find it on the heading of the official BOEs to the congregations
I think it is a lame way to try and distance themselves from "Watchtower" and "Jehovah's Witnesses" as a label. Unfortunately, they continue to use those labels to refer to themselves in the publications. Ask a jw what religion they are and they will still stay they are one of Jehovah's Witnesses, not "I'm a Christian." The problem lies with the fact that all Christian religions identify themselves as Christians but the WTS does not believe that they are "true Christians."
*** km 1/02 p. 7 New Corporations Formed ***
NewCorporationsFormed
The January 15, 2001, issue of TheWatchtower reported on the organized way in which Jehovah’s Witnesses are continuing to move forward with the Kingdom work in all the earth. It also explained how various legal entities are used as instruments to facilitate the spreading of the good news. Such entities or corporations are necessary to conform to local and national laws, as required by God’s Word. (Rom. 13:1) Because of the diversity and scope of our work, the Governing Body has approved the formation of additional corporations to care for certain needs of Jehovah’s Witnesses here in the United States. The new corporations are as follows:
Christian Congregation of Jehovah’s Witnesses
Religious Order of Jehovah’s Witnesses
Kingdom Support Services, Inc.
These will operate along with Watch Tower Bible and Tract Society of Pennsylvania and Watchtower Bible and Tract Society of New York, Inc. Congregations and publishers may receive correspondence from any of these corporations. Your cooperation with these adjustments made by the Governing Body in fulfilling its assignment to care for all the Master’s belongings will be greatly appreciated.—Matt. 24:45-47.
*** km 1/02 p. 7 New Corporations Formed ***These will operate along with Watch Tower Bible and Tract Society of Pennsylvania and Watchtower Bible and Tract Society of New York, Inc. Congregations and publishers may receive correspondence from any of these corporations. Your cooperation with these adjustments made by the Governing Body in fulfilling its assignment to care for all the Master’s belongings will be greatly appreciated.—Matt. 24:45-47.