Brookfield Infrastructure Partners (BIP) F-1/A Registration statement (foreign) (amended)

Exhibit 5.2

March 10, 2020

Brookfield Infrastructure Corporation

250 Vesey Street, 15th Floor

New York, New York 10281

Ladies and Gentlemen:

We have acted as legal counsel to Brookfield Infrastructure Corporation, a corporation organized under the laws of British Columbia (the “Company”), in connection with the registration by the Company of up to 47,000,000 class A subordinate voting shares (the “Exchangeable Shares”) to be issued in a special distribution (the “Special Distribution”) to the holders of limited partnership units of Brookfield Infrastructure Partners L.P. (the “Partnership”). The terms of the Special Distribution and the issue of the Exchangeable Shares are detailed in the prospectus constituting part of the Registration Statement (as defined below).

We are providing this opinion in connection with the filing by the Company of:

(a) the Registration Statement on FormF-1 (Nos.333-233934 and333-233934-01) (as amended or supplemented, the “Registration Statement”), filed by the Company and the Partnership with the U.S. Securities and Exchange Commission under the U.S. Securities Act of 1933, as amended (the “Act”), relating to, among other matters, the registration of the Exchangeable Shares under the Act; and

(b) the prospectus contained in the Registration Statement, as amended (the “Prospectus”).

For the purposes of this opinion, we have examined and relied upon, amongst other things, the following:

1. the Company’s Notice of Articles and the Company’s Articles, each as amended to date;

2. resolutions of the Board of Directors of the Company dated September 24, 2019 and March 9, 2020 that relate, among other things, to the Registration Statement, the Prospectus and the actions to be taken in connection with the Special Distribution;

3. the Registration Statement;

4. Amendment No.6 to the Registration Statement, including the form of the amendment to the Articles of the Company attached thereto as Exhibit 3.1 (the “Amended Articles”);

McMillan LLP | Royal Centre, 1055 W. Georgia St., Suite 1500, Vancouver, BC, Canada V6E 4N7 | t 604.689.9111 | f 604.685.7084

Lawyers | Patent & Trademark Agents | Avocats | Agents de brevets et de marques de commerce

Vancouver | Calgary | Toronto | Ottawa | Montréal | Hong Kong | mcmillan.ca

Page 2

5. the Prospectus; and

6. such other corporate records, agreements, documents and other instruments, and such certificates or comparable documents of public officials and of officers and representatives of the Company as we have deemed relevant and necessary as a basis for the opinions hereafter set forth.

In all such examinations, we have assumed the genuineness of all signatures, the authenticity of all documents, certificates and instruments submitted to us as originals and the conformity with the originals of all documents submitted to us as copies. We have also made inquiries of such officers and representatives as we have deemed relevant and necessary as a basis for the opinions hereafter set forth.

In providing this Opinion, we have assumed that, prior to the completion of the Special Distribution (i) the Amended Articles will be adopted and approved by a special resolution of the shareholders of the Company (the “Approval”); and (ii) the Company will file an amendment to the Notice of Articles with the Registrar of Companies for British Columbia giving notice of the Amended Articles in the form required under the British Columbia Business Corporations Act (the “Filing”).

Based upon the foregoing, subject to the completion of the Approval and the Filing, we are of the opinion that the Exchangeable Shares have been duly authorized for issuance by all necessary corporate action by the Company, and the Exchangeable Shares, when issued in the Special Distribution as described in the Prospectus, will be validly issued, fully paid andnon-assessable shares in the capital of the Company.

We are qualified to practice law in the Provinces of British Columbia, Alberta, Ontario and Quebec and we do not purport to be experts on the law of any other jurisdiction other than the Provinces of British Columbia, Alberta, Ontario and Quebec and the federal laws of Canada applicable therein. We do not express any opinion herein concerning any law other than the laws of the Province of British Columbia Quebec and the federal laws of Canada applicable therein. We express no opinion and make no representation with respect to the law of any other jurisdiction. This opinion is expressed as of the date hereof unless otherwise expressly stated, and we disclaim any undertaking to advise you of any subsequent changes of the facts stated or assumed herein or any subsequent changes in applicable law.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to our firm under the caption “Legal Matters” in the Prospectus constituting part of the Registration Statement. In giving this consent, we do not admit that we are an “expert” within the meaning of Section 11 of the Act or within the category of persons whose consent is required by Section 7 of the Act.

Very truly yours,

/s/ McMillan LLP