Advanced Drainage Systems (WMS) AGM 2026 summary

Opening remarks and agenda

• The meeting was called to order by the President and CEO, with an agenda provided via the online portal outlining the order of business and voting matters.

• Stockholders were informed of three proposals: election of nine directors, ratification of the independent auditor, and a non-binding advisory vote on executive compensation.

Board and executive committee updates

• Current board members were introduced, with recognition given to two outgoing directors for their service.

• Members of the executive management team were also in attendance.

Corporate governance

• Notice of the meeting was mailed to stockholders of record, and all necessary materials were made available electronically or by request.

• The meeting was conducted virtually, with clear guidelines and voting procedures communicated to participants.

• A quorum was established with over 90% of shares represented.

• An independent inspector of election was appointed and present.