(1) The stockholders are to pay in the contributions upon these being called in by the management board. Unless stipulated otherwise in the by-laws, notice of the call letter is to be given in the company’s publications of record.
(2) Stockholders who fail to make payment, in due time, of the amount called in are to pay interest from the date on which said amount falls due at a rate of five per cent per annum. The assertion of further damages is not precluded.
(3) The by-laws may specify contractual penalties for the case of contributions not being paid in in due time.