| Line | Roll Up Total Concept | Roll Up Items Concept | Count |
|---|---|---|---|
| 1 | gtmay:ConcessionalRightsNet | gtmay:AccumulatedAmortizationAndDepreciationConcessionRights | 1 |
| 2 | gtmay:ConcessionalRightsNet | ifrs-full:IntangibleAssetsOtherThanGoodwill | 1 |
(Note that this is a work in progress!)