| Total operating revenue | 182.07a | 175.36a |
| Operating revenue | 182.07a | 175.36a |
| Total operating costs | -165.01a | -156.44a |
| Operating cost | -152.64a | -145.93a |
| Taxes and surcharges | -1.08a | -0.96a |
| Selling expenses | -1.62a | -1.35a |
| Administrative expenses | -3.02a | -2.45a |
| Research and development expenses | -4.55a | -4.08a |
| Finance costs | -2.09a | -1.68a |
| Interest expense | -2.82a | -2.84a |
| Interest income | 0.95a | 1.29a |
| Other income | 1.18a | 0.94a |