| 2017 CHF | 2016 CHF | |
| 01.01.17 – 30.06.17 | 01.01.16 – 30.06.16 | |
| Net profit incl. minority interests | 12,827,322 | 11,038,903 |
| Depreciation of tangible and intangible assets | 5,916,798 | 5,338,339 |
| Net interest expense | 1,790,401 | 470,131 |
| Other non-cash items | –538,037 | 67,139 |
| Change in long-term provisions | 633,848 | 455,490 |
| Accounting losses (profits) from sales of fixed assets | –16,658 | 4,278 |
| Income from associates and joint ventures | –219,360 | –180,939 |
| Cash flow from operating activities before changes in net working capital | 20,394,313 | 17,193,341 |
| As % of net sales revenue | 6.74 % | 6.30 % |
| Change in accounts receivable | –23,830,894 | –939,301 |
| Change in accounts receivable from related parties | –2,659,980 | –2,996,201 |
| Change in accounts receivable from associated parties | –740,625 | 0 |
| Change in other current receivables | –9,441,468 | –3,062,466 |
| Change in other current receivables from related parties | –4,861 | 0 |
| Change in inventories | –9,976,894 | –19,524,372 |
| Change in accrued income | –4,164,792 | –2,026,712 |
| Change in trade payables | –4,672,584 | –7,095,333 |
| Change in other short-term financial liabilities | 4,202,386 | –625,256 |
| Change in other short-term financial liabilities to related parties | –8,038,238 | 344,299 |
| Change in accrued liabilities and deferred income | 2,857,070 | 1,684,935 |
| Change in net current assets | –56,470,880 | –34,240,408 |
| Cash flow from operating activities | –36,076,567 | –17,047,067 |
| As % of net sales revenue | –11.92 % | –6.25 % |
| Investments in tangible assets | –30,708,737 | –11,432,255 |
| Divestments of tangible assets | 27,823 | 532,704 |
| Investments in intangible assets | –198,943 | –98,504 |
| Divestments of non-current financial assets | 22,029 | 873 |
| Interest and dividends realized from financial assets | 670 | 8 |
| Cash flow from investing activities | –30,857,157 | –10,997,174 |
| Free cash flow | –66,933,723 | –28,044,241 |
| As % of net sales revenue | –22.12 % | –10.28 % |
| Change in short-term financial liabilities | –7,955,423 | 4,579,631 |
| Change in long-term financial liabilities | –31,589,574 | 14,956,036 |
| Additions/disposals of minority interests in capital and profit | –40,486 | 0 |
| Mandatory convertible bond | 87,485,000 | 0 |
| Capital increase | –1,420,881 | –49,884 |
| Change in capital of subsidiaries | 18,750 | 0 |
| Sale (purchase) of treasury shares net cash flow | –1,745,768 | –515,690 |
| Interest paid | –1,791,071 | –470,139 |
| Dividend paid to shareholders | –5,336,891 | –5,216,023 |
| Cash flow from financing activities | 37,623,655 | 13,283,932 |
| Impact of currency translation | –56,692 | 24,964 |
| Net change in cash and cash equivalents | –29,366,760 | –14,735,345 |
| Cash and cash equivalents at 1 January | 67,707,898 | 43,023,224 |
| Cash and cash equivalents at 30 June | 38,341,138 | 28,287,879 |