21. The following are required to be registered:(1) natural persons who operate a sole proprietorship, whether or not a commercial enterprise, in Québec under a name that does not include their surname and given name;
(2) general or limited partnerships constituted in Québec;
(3) partnerships not constituted in Québec if they carry on an activity in Québec, which includes the operation of an enterprise, or possess an immovable real right, other than a prior claim or hypothec, in Québec;
(4) legal persons established for a private interest and constituted in Québec;
(5) legal persons established for a private interest not constituted in Québec, or legal persons constituted in Québec and continued under the laws of a jurisdiction other than Québec, if they are domiciled in Québec, carry on an activity in Québec, which includes the operation of an enterprise, or possess an immovable real right, other than a prior claim or hypothec, in Québec;
(6) legal persons established for a private interest described in subparagraph 4 or 5 and resulting from an amalgamation other than a short-form amalgamation within the meaning of the Business Corporations Act (chapter S-31.1); (7) mixed enterprise companies established under the Act respecting mixed enterprise companies in the municipal sector (chapter S-25.01); (8) trusts operating a commercial enterprise in Québec, other than a trust administered by a registered registrant; and
(9) a union of persons reciprocally bound by insurance contracts to which the laws of Québec apply.