The Address United Digital Solutions

B2B procurement · Prototype

Mithaq — B2B contracts & procurement platform

A bilingual platform that runs a supply contract from start to finish, through approvals, a service fee, credit approval, OTP e-signatures and milestone escrow payments to a completion certificate, with every step recorded in a tamper-evident audit log.

Arabic landing page hero, “Every supply contract… on one platform”
Deal timeline on a phone, with the supplier signed and the client's signature pending
Client
Confidential client
Industry
B2B procurement
Year
2026
Status
Prototype
Services
Web Solutions · Branding & Content

01The brief

  • Contracts were scattered across email, spreadsheets and paper.
  • Approval cycles were long, and suppliers, clients and finance teams spent a lot of effort coordinating.
  • Payments arrived late with no protection, and it was hard to see where a contract stood.
  • The goal: one secure platform for the whole contract lifecycle, from the contract file to close-out, with a clear audit trail.

02What we built

  • Secure sign-in with a business account number and a number-matching check in an authenticator app.
  • Separate workspaces for suppliers, client companies, account representatives and compliance officers.
  • A three-step new-deal wizard, plus a contract file that captures the delivery site and a scope form that adapts to the contract type.
  • A live deal room: a nine-stage timeline both parties see update automatically, covering acceptance, approvals, service fee, credit approval, OTP e-signatures, milestone escrow and close-out.
  • A printable completion certificate, a notifications centre and a compliance dashboard with deals by status and by city.
  • Identity, payments, finance, e-signature and audit each sit behind their own connector, so real providers can be plugged in without changing the business flow.

03Design highlights

  • A Saudi-inspired identity: deep green, gold and warm sand, a Sadu-weave band, an eight-point khatam star pattern and diamond-shaped step badges.
  • Arabic-first with a full right-to-left layout and a one-click switch to English. Every label and data field exists in both languages.
  • An audit log where each event is chained to the one before it, so any tampering shows immediately.
  • A responsive layout that works down to phone widths.

04Technology

Angular front end with Tailwind CSS, an ASP.NET Core (.NET 10) API with SQL Server and JWT security, and a SHA-256 hash-chained audit log.

Gallery

Desktop and phone screens

Account representative's workspace listing supply deals with live status badges
Deal room at the e-signing stage, with the client confirming by one-time code
English payment page for the deal service fee, using a test card
Closed contract with its hash-chained audit log beside the delivery site and scope
Compliance dashboard with deals by status and by city (demo data)
Arabic landing page on a phone
Account representative's workspace on a phone
Arabic service-fee payment page on a phone

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