In this integrated assessment, a focus on a formal negotiation plan has been pursued. This is through the focus of Roshn organisation which is a Saudi Arabia’s largest real estate development company owned by the Public Investment Fund for KSA, has Vision 2030 supplier sourcing management strategies. The firm’s procurement department relies on a model outlined by Bailey et al that provides a rigorous approach to preparation and analysis in order to get better bargains. Hence, the Roshn internal supplier data collection and external market research to create accurate supplier risk and sourcing plans. A variety of tools is applied, such as the Kraljic Matrix that is used to sort suppliers. The key findings note that different training activities include negotiation simulations and skills to prepare and help procurement officers for the journey. Another key finding ius that detailed planning and analytical structures accompany objectives and concession tracking. Another key finding note that supply relations are strategically classified on issues of risk and consequences as far as supply management is concerned. On a continuous basis, repetition and necessarily sequenced post negotiation reviews improve processes gradually for a successful negotiation plan. From the findings and conclusions obtained, to maximise efficiency and optimise outcomes, it is recommended:

• Roshn standardise the Bailey et al procurement framework.
• Regular training will develop negotiation mastery, and the Kraljic Matrix will tailor strategies per supplier importance.
• Sourcing strategies should evolve through market reviews. Building long-term, trusting partnerships will foster competitiveness beyond transactions.
• Clear metrics measuring initiatives' success will empower data-driven process adjustments.
• Adopting these practices will enhance Roshn's sustainable sourcing in support of Vision 2030 goals.