Cayzer v Phoslock Environmental Technologies Ltd (Opt Out and Registration Notice)

This decision sits inside a shareholder class action against Phoslock Environmental Technologies Ltd, two former senior officers and former auditor KPMG. The approved notice says the applicant alleges that Phoslock failed to disclose important information to the ASX about its business operations in China, that its financial statements during the relevant period did not give a true and fair view of its financial position, that the former directors made market representations about the financial reports, and that KPMG failed to properly audit the accounts. The respondents deny those allegations. KPMG also brought a cross-claim seeking to pass on liability if it were found liable to group members.

The ruling at [2026] FCA 438 was not the trial of those claims. It was a procedural decision made on the papers about how group members should be notified before a scheduled mediation. The parties asked the Court to make consent orders dealing with an opt out and registration notice, the way the notice would be distributed, and a class closure mechanism linked to a possible settlement. The Court accepted the amended procedural framework, but only after the original proposal was changed to remove soft class closure orders that the Court said it had no power to make.

The legal issue was narrow but significant. Stewart J had to decide whether to make proposed consent orders in a representative proceeding under the Federal Court of Australia Act 1976 (Cth). The catchwords identify the setting as orders relating to distribution of the opt out notice, the opt out and registration processes and class closure. The legislation listed in the extract includes sections 33V, 33X, 33Y and 33ZB, while the orders themselves were made under sections 33J, 33X, 33Y and 33ZF.

The catchwords make the key point clear. The original orders included soft class closure orders. The Court held that it did not have power to make those orders. Amended consent orders were then sought excluding that impermissible feature, and the Court was satisfied with the amended version. So this was not a dispute about whether notice should be given at all. It was about which parts of the proposed process were legally available and which were not.

The catchwords also refer to professional responsibilities and the Court’s expectations of solicitors and barristers. That tells business readers two things. First, the Court did not treat this as a routine administrative exercise. Second, even where all parties agree, the Court expects legal practitioners to identify whether proposed orders are within power before asking the Court to make them.

The amended orders created a detailed communications and administration plan. The Court fixed 4:00 pm on 27 May 2026 as the deadline before which a group member could opt out of the proceeding and register to participate in the distribution of any amount agreed in any in-principle settlement reached at the mediation on 11 June 2026 or within two months after it, being 11 August 2026. The Court also approved the form and content of the opt out and registration notice.

The distribution steps were specific. Phoslock had to instruct Computershare Ltd to prepare a confidential list of contact details for persons who held, acquired or disposed of shares in Phoslock between 11 October 2018 and 17 September 2020, and to prepare a report identifying how many people had email addresses, postal addresses only, and overseas postal addresses. Phoslock then had to provide that confidential list to Bing Technologies Pty Ltd as the third-party processor for distribution of the notice.

The notice was to be sent by ordinary post or email to the last known postal or email address of the persons on the confidential list. The orders also required the distribution agent to prepare and retain a distribution list recording the address used, the number of notices sent by email or post, and whether any notice was returned undelivered. The applicant could make non-substantive corrections to the notice, such as website or email details, before publication.

Publication did not stop with direct contact. The applicant’s solicitors had to place the notice on their website by 17 April 2026 and keep it there until at least the day after the deadline. The District Registrar of the Victoria Registry also had to arrange for the notice, the further amended statement of claim, the respondents’ defences and the current cross-claims and defences to be posted on the Federal Court website and made available for inspection at registries around Australia. The applicant also had leave to place newspaper advertisements in the approved form.

The approved notice gave group members three practical choices. They could register, opt out, or do nothing. Registration was the step required if a group member wanted to be eligible to receive compensation under any in-principle settlement reached at the mediation or by 11 August 2026. The orders set out how registration could occur, including online, by email or by post. Partial completion of a registration form was not fatal, and people who had already registered with Banton Group did not need to register again.

Opting out meant ceasing to be a group member. The orders required a person who wished to opt out to deliver an opt out form to the Victoria Registry before the deadline. If a solicitor for any party received a document purporting to be an opt out form, that solicitor had to provide it to the registry within 14 days, and it would be treated as received by the Court when the solicitor received it.

The more difficult issue was what would happen to people who did nothing. The approved notice said that if an in-principle settlement were reached at the mediation or by 11 August 2026, the parties would then seek orders that non-registered and non-opted-out group members would remain group members but, without leave of the Court, would not be permitted to seek any benefit from that settlement. That is the practical setting for the soft class closure issue identified in the catchwords.

The Court did not make the original soft class closure orders. The catchwords say the Court did not have power to make those orders. The amended consent orders therefore excluded that impermissible component. This is an important distinction. The Court was willing to approve a notice and registration process that informed group members of the parties’ intended future application if a settlement were reached. But that did not mean the Court accepted that the foreshadowed settlement consequences were already authorised or should automatically be imposed.

One of the most practical features of this decision is the amount of record handling it required. The orders dealt with shareholder contact data, anonymised trading data, deidentified trading data for registered group members, website publication and public access to pleadings. That is a useful reminder that representative proceedings often become data-management exercises as much as legal disputes.

Phoslock had to provide an anonymised version of its share register to the applicant and the other respondents by 9 April 2026. That anonymised register had to include the number and class of shares held by each shareholder, dates of acquisition and disposal during the relevant period, the number of shares acquired or disposed of, any recorded consideration, and opening and closing balances. The orders made clear that the register had to include shareholders who held shares at any time during the relevant period.

The first respondent also had to provide relevant share trading data from the share register to any group member who intended to complete the registration form and requested that information. That is commercially significant. It shows that once a notice process is approved, the respondent company may be required to support the practical ability of group members to respond accurately.

There were also obligations on the applicant’s solicitors. By 1 June 2026 they had to deliver deidentified trading data for registered group members to the respondents’ solicitors. The data had to include a unique identification number for each registered group member and the specified trading information. Liberty was reserved to correct errors. The costs of the procedure were the applicant’s costs in the first instance and in the cause, and the orders expressly stated that answering enquiries from group members and members of the public about the notice was work incidental to the procedure.

The Court made the amended consent orders and approved the opt out and registration notice process. That included the deadline of 27 May 2026, the approved notice, direct distribution by post or email, website publication, registry availability, newspaper advertising, registration mechanics, opt out mechanics and the specified data exchanges.

The Court did not make the proposed soft class closure orders that had originally been included. The catchwords state that the Court did not have power to make those orders. The practical result is that the notice and registration framework was allowed to proceed, but the impermissible class closure component was removed.

The extract also shows that the judgment touched on professional responsibilities and the Court’s expectations of solicitors and barristers. The extract does not reproduce that discussion in full, so this page does not go beyond the point clearly supported by the catchwords: the Court considered the issue important enough to expressly refer to professional obligations when dealing with the proposed orders.

If your business is listed, heavily regulated, or has a large investor, member or customer base, this case is a practical reminder that litigation exposure is not limited to the final merits hearing. A procedural application can require a company to work with registries, identify historical holders, estimate distribution costs, provide trading data, support a third-party mailout, publish documents and manage incoming enquiries. Those tasks can involve legal, governance, investor relations, IT, records management and privacy functions at the same time.

The case also shows the limits of party agreement. Businesses sometimes assume that if all sides support a settlement-related process, the Court will approve it. This decision shows otherwise. The Court was prepared to facilitate communication with group members and a registration process ahead of mediation, but it would not make orders that were beyond power simply because they were useful to settlement planning.

There is also a broader governance point. The approved notice summarises allegations about disclosure, financial reporting and audit quality. This ruling did not decide those allegations, but it shows how disclosure-related disputes can expand to include directors and auditors and become complex representative proceedings. For smaller businesses, the exact risk profile may differ from an ASX-listed company, but the underlying lesson is still practical: careful reporting, disciplined record-keeping and controlled public statements reduce the chance that a dispute will turn into a large-scale claims process.

The judgment was delivered on 15 April 2026 and decided on the papers. The mediation referred to in the orders was set for 11 June 2026. The registration and opt out deadline fixed by the Court was 27 May 2026. The orders also referred to a two-month period after the mediation, ending on 11 August 2026, for any in-principle settlement that would fall within the registration framework described in the notice.

This is a procedural decision, not a final determination of liability. It should be read as authority on the Court’s handling of the proposed notice, registration and class closure process in this proceeding, not as a finding that the underlying allegations were made out.

This page is based on the published Federal Court extract for Cayzer v Phoslock Environmental Technologies Ltd (Opt Out and Registration Notice) [2026] FCA 438, including the catchwords, the orders made on 15 April 2026 and the court-approved notice reproduced in the extract. Those materials clearly support the procedural account given here, including the deadlines, the notice mechanics, the allegations as summarised in the notice, and the Court’s refusal to make the proposed soft class closure orders.

The extract also refers to professional responsibilities and the Court’s expectations of solicitors and barristers, but it does not set out the full detail of that discussion here. Readers looking for a deeper analysis of the Court’s reasoning on that point should review the full judgment.