X0206 3 2021-05-26 1 0001680378 SenesTech, Inc. SNES 0001862241 Williams Nicole C C/O SENESTECH, INC. 23460 N. 19TH AVE, STE 110 PHOENIX AZ 85027 1 Chief Strategy Officer Exhibit 24 Power of Attorney filed herewith /s/ Thomas C. Chesterman, Attorney-in-fact 2021-05-26