EX-23.A 4 potex23a.txt (Letterhead of Robertson Stromberg) Re: Registration Statement of Potash Corporation of Saskatchewan Inc. on Form S-3 (No. 333-27685) ---------------------------------------------------------------- We hereby consent to the use of our name under the caption "Legal Matters" in the prospectus supplement relating to the Registrant's Registration Statement on Form S-3 (No. 333-27685). In giving this consent, we do not hereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended, or the rules and regulations of the Securities and Exchange Commission. ROBERTSON STROMBERG Saskatoon, Saskatchewan, Canada May 10, 2001