EX-99.3 4 a12-26275_2ex99d3.htm EX-99.3

Exhibit 99.3

 

CERTIFICATE OF CASSANDRA SPENCE

 

I, Cassandra Spence, P. Eng., of Flin Flon, Manitoba, do hereby certify that:

 

1.              I am currently employed as Senior Mill Metallurgist with HudBay Minerals Inc. (the “Issuer”), P.O. Box 1500, Flin Flon, Manitoba, Canada, R8A 1N9.

 

2.              I graduated from Queen’s University with a Bachelor of Sciences in Engineering in 2000.

 

3.              I am a member in good standing of the Association of Professional Engineers & Geoscientists of the Province of Manitoba, Registration #23055.

 

4.              I have practiced my profession continuously for over 12 years and have been involved in mineral processing with base metal ores, including process development, flow sheet design and plant optimization and management.

 

5.              I have read the definition of “qualified person” set out in National Instrument 43-101 (NI 43-101) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purpose of NI 43-101.

 

6.              I am responsible for sections 13 and 17 of the technical report titled “Technical Report 777 Mine, Flin Flon, Manitoba, Canada”, dated October 15, 2012 (the “Technical Report”). I am involved with processing of the ore from the property on a daily basis and was last underground at 777 Mine on December 13, 2011.

 

7.              As of the date of this certificate, to the best of my knowledge, information and belief, the parts of the Technical Report that I am responsible for contain all scientific and technical information that is required to be disclosed to make the Technical Report not misleading.

 

8.              I have been involved with mineral processing of the 777 and Callinan deposits since 2004.

 

9.              I am not independent of the Issuer. Since I am an employee of the Issuer, a producing issuer, I fall under subsection 5.3 (3) of NI 43-101 where “A technical report required to be filed by a producing issuer is not required to be prepared by or under the supervision of an independent qualified person.”

 

10.       I have read National Instrument 43-101 and Form 43-101F1, and the Technical Report has been prepared in compliance with the instrument and form.

 

11.       I consent to the filing of the Technical Report with any stock exchange, securities commission or other regulatory authority and any publication by them, including electronic publication in the public company files on their websites accessible by the public, of the Technical Report.

 


 

Dated this 15th day of October, 2012.

 

 

(signed) Cassandra Spence

 

 

 

“Sealed”

 

Signature of Qualified Person

 

 

 

Cassandra Spence, P. Eng.

 

Senior Mill Metallurgist

 

Hudbay