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Questions, ideas or feedback?

Get in touch with Alibtikar Walhulul AlMumtazah (IHM), the publisher and operator of AECEQ. Share a suggestion, ask about a tool, or report something that needs a closer look.

Last updated: 27 September 2026

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For a question or technical report, include the tool or page name, your browser and a short description of what happened. Please leave out confidential project information.

Questions about a tool or an idea for AECEQ? Email [email protected].

Email [email protected]

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Do not send model files, confidential project documents, calculator inputs or results, payment-card details, identity documents, credentials, or unnecessary personal data. A technical report should identify the page, browser family, and problem without including project content.

Privacy and legal requests

For privacy requests, legal notices, accessibility feedback, technical reports, methodology concerns, or rights complaints, email [email protected].

AECEQ is published and operated by Alibtikar Walhulul AlMumtazah (IHM) and managed from Saudi Arabia. Service address for legal notices: Building 6816, Eastern Ring Branch, Al Safa District, Riyadh 12856, Saudi Arabia.

State the right you wish to exercise and provide only the information reasonably needed to understand and verify the request. The operator may be unable to identify calculator information because the application does not receive or store it.