Methanex Project Overview

30 Geismar 3 project is significantly de-risked and well-positioned for success Total project cost $1.25B- $1.35B Construction labour • Construction labour Strong project and construction management capability with prior Geismar 1 and 2 project experience G3 project is well-positioned in the construction market ahead of other major projects Utilizing sub-contractors with proven experience and track record from our Geismar 1 and 2 projects Applied learnings from Geismar 1 and 2 projects to further enhance construction productivity ~$800M - 900M to go¹ Fixed or firm costs Fixed or firm project costs Large portion of remaining project costs are fixed or firm including: Integrated project team and other Owner's costs (e.g. salaries, catalyst supply, key spare parts already procured) Pricing established for most of the remaining bulk material costs (mainly piping and structural steel) Residual bulk material spend will be fixed before the end of 2021 Spend through Q3 2021 Focus of spend during this period has significantly de-risked future project execution - such as: • ~1/3 of total project costs spent since FID and through 'care and maintenance' Spend through end of Q3 2021 Site preparations complete allow for early resumption of main construction activities Engineering substantially (>95%) complete eliminating potential scope risk and improves construction productivity Long-lead equipment procured and fabricated and will arrive on site early reducing schedule risk 1 Reflects remaining capital costs, after resuming construction, with healthy allowances for both escalation and contingency costs methanex the power of agility

View entire presentation