Second Quarter 2017 Earnings Results Conference Call Invitation

July 6, 2017

Mexichem S.A.B. de C.V. (BMV: Mexchem*), a worldwide leader in plastic pipes and chemicals, will release its Second Quarter 2017 Earnings results after the market closes on Wednesday, July 26, 2017.

Management will host a Conference Call on Thursday, July 27, 2017 to review results and operations from the quarter.

When dialing in, please let the operator know you are here for the Mexichem earnings call. The details for the conference call are as follows:

Thursday, July 27, 2017

10:00 a.m. (Mexico City Time)

11:00 a.m. (US Eastern Time)

Speakers:

Antonio Carrillo Rule, CEO

Rodrigo Guzman Perera, CFO

Marcela Muñoz Moheno, IR

To participate in the conference call please dial:

Domestic US: 1-888-349-0106

International: +1-412-902-0131

Domestic Mexico: 001-855-817-7630

Participants are requested to connect 10 minutes prior to start time.

Webcast Archive

The webcast archive will be available approximately two hours after the end of the call through October 27, 2017. The archive can also be accessed via the following link:

http://services.choruscall.com/links/mexichem170727.html