Written resolutions are governed by sections 184A to 184G of the Companies Act 1967 (Cap. 50), which expressly allow a private company to pass resolutions by written means, in either physical or electronic form, instead of holding a general meeting. Section 184A(3) and (4) fix the thresholds: an ordinary resolution passes once members holding a simple majority of the voting rights agree, and a special resolution once 75% agree. The agreement is what counts, not a meeting; section 184C requires the directors to send the proposed resolution to every member entitled to vote before it can be passed, and section 184E obliges the company to notify members that a written resolution has been passed.
A minority safeguard runs through the regime. Under section 184D, members holding at least 5% of the voting rights can serve notice requiring that a general meeting be convened instead of proceeding by written means, which is why the written route suits decisions where the outcome is not contested. Section 184F requires the company to record every resolution passed by written means in its minute book, and the signed resolution must be kept for ten years as part of the statutory records. A resolution that is never filed in the minute book is treated, in practice, as if it never happened.
Directors' resolutions follow a separate logic. A board resolution passed at a meeting carries by simple majority of the directors present, but a directors' resolution in writing depends on the constitution. The ACRA Model Constitution and most bespoke constitutions require that a written directors' resolution be signed by all directors entitled to receive notice of a board meeting, so the safe default is unanimous signature unless the company's own constitution lowers the bar. Throughout, section 156 requires a director with a material interest in a transaction to declare it, and that declaration belongs in the resolution itself. The authoritative text of these provisions is published on Singapore Statutes Online's Companies Act 1967. Because the constitution can override the statutory defaults on quorum, majorities and signing, the constitution should always be read alongside the Act before a resolution is finalised; our shareholders agreement template for Singapore companies addresses the reserved matters that often raise the threshold.