July 26 (Reuters) - Methanex Corp MX.TO
* Methanex increases its existing share repurchase program to 10 pct of public float
* Methanex Corp - has approved an amendment to its existing normal course issuer bid originally announced on March 6, 2017
* No other terms of bid have been amended
* Methanex Corp - amendment to its existing normal course increases number of common shares that may be purchased under bid from 4.5 million to 6.2 million