| 2018 CHF | In % | Restated 2017 CHF | In % | ||
| 01.01.18 – 30.06.18 | 01.01.17 – 30.06.17 | ||||
| Net sales revenue | 281,594,477 | 91.8% | 302,382,934 | 96.7% | |
| Other operating income | 212,979 | 0.1% | 194,646 | 0.1% | |
| Change in inventories of semi-finished and finished products | 24,859,751 | 8.1% | 10,266,357 | 3.3% | |
| Production revenue | 306,667,208 | 100.0% | 312,843,937 | 100.0% | |
| Cost of materials and goods | –224,665,050 | –73.3% | –233,556,416 | –74.7% | |
| Gross operating profit | 82,002,158 | 26.7% | 79,287,521 | 25.3% | |
| Personnel expenses | –27,493,921 | –9.0% | –25,282,727 | –8.1% | |
| Other operating expenses | –41,457,730 | –13.5% | –32,307,657 | –10.3% | |
| Total operating expenses | –68,951,651 | –22.5% | –57,590,384 | –18.4% | |
| EBITDA | 13,050,507 | 4.3% | 21,697,137 | 6.9% | |
| Depreciation of fixed assets | –6,596,059 | –2.2% | –5,581,225 | –1.8% | |
| Amortisation of intangible assets | –673,064 | –0.2% | –335,573 | –0.1% | |
| Impairment of shareholdings | –2,849,490 | –0.9% | 0 | 0.0% | |
| EBIT | 2,931,893 | 1.0% | 15,780,339 | 5.0% | |
| Income from associates and joint ventures | 267,329 | 0.1% | 219,360 | 0.1% | |
| Financial result | –4,625,415 | –1.5% | –15,465 | –0.0% | |
| Earnings from operating activities | –1,426,193 | –0.5% | 15,984,234 | 5.1% | |
| Non-operating result | –9,882 | –0.0% | –16,439 | –0.0% | |
| Extraordinary result | –106,045 | –0.0% | 39,626 | 0.0% | |
| Earnings before taxes | –1,542,120 | –0.5% | 16,007,420 | 5.1% | |
| Income taxes | –655,458 | –0.2% | –2,022,536 | –0.6% | |
| Net profit | –2,197,578 | –0.7% | 13,984,884 | 4.5% | |
| Attributable to: | |||||
| Parent company shareholders | –2,231,758 | –0.7% | 7,946,120 | 2.5% | |
| Minority interests | 34,179 | 0.0% | 6,038,764 | 1.9% | |
| Net profit | –2,197,578 | –0.7% | 13,984,884 | 4.5% | |
| Earnings per share (basic) | –1.59 | 5.65 | |||
| Earnings per share (diluted) | –1.59 | 3.75 |