| As at December 31, 2021 | As at December 31, 2020 | |
|---|---|---|
| Advances for property, plant and equipment | 749 | 711 |
| Cost to acquire customers | 106 | 105 |
| Other non-current assets | 18 | 23 |
| TOTAL OTHER ASSETS | 873 | 839 |
Advances for property, plant and equipment are mainly related to the construction of two gas and steam units by PGE Gryfino 2050 sp. z o.o. The cost to acquire customers concern co-financing by PGE Energia Ciepła S.A. of investments in the development of district heating networks and agent commissions at PGE Obrót S.A.