Australian Securities Commission v Marlborough Gold Mines Ltd

The Australian Securities Commission (ASC) brought proceedings against Marlborough Gold Mines Ltd (Marlborough) in the Federal Court of Australia. The dispute concerned allegations that Marlborough had contravened provisions of the Corporations Law by failing to disclose material information to the market in a timely manner. Specifically, the ASC alleged that Marlborough had failed to disclose information regarding a significant gold discovery at its mine, which was considered price-sensitive.

The primary legal issue before the Full Federal Court was whether Marlborough had breached its continuous disclosure obligations under section 1001A of the Corporations Law. This involved determining what constituted "material" information and when such information was required to be disclosed to the stock exchange. The court also had to consider the intent or knowledge required for a contravention of this provision.

The Full Federal Court, in its reasoning, clarified the meaning of "material information" in the context of continuous disclosure. It held that information is material if a reasonable person would expect it to have a material effect on the price or value of the company's securities. The court emphasized that the obligation to disclose is a strict one, meaning that a contravention can occur even without proof of deliberate concealment or intent to mislead. The court found that the information regarding the gold discovery was indeed material and that Marlborough had failed to disclose it promptly, thereby contravening section 1001A.

The court allowed the ASC's appeal, setting aside the primary judge's decision and remitting the matter for determination of penalties.