June 15, 2014 Dr. John Thompson 1438120 Ontario Limited University of Waterloo Waterloo, Ontario N2L 3G1 Canada Re: Amendment #9 to Consulting Agreement of July 12, 1999

Exhibit 10.18 

June 15, 2014

Dr. Xxxx Xxxxxxxx

1438120 Ontario Limited

Xxxxxxxxxx xx Xxxxxxxx

Xxxxxxxx, Xxxxxxx X0X 0X0

Xxxxxx

Re:      Amendment #9 to Consulting Agreement of July 12, 1999

Dear Xx. Xxxxxxxx:

This will modify paragraph 11 of your Consulting Agreement with Senesco dated July 12, 1999, as modified.

Effective immediately, the term of the Consulting Agreement, as modified, will be extended for an additional 1 year term through June 30, 2015.

All other terms of the Agreement remain unchanged.

Sincerely,

Xxxxxx X. Xxxxxx, Ph.D.

President

Senesco, Inc.

Acknowledged and Agreed:

/s/ Xxxx Xxxxxxxx

1438120 Ontario Limited

Dr. Xxxx Xxxxxxxx