This　study　explores　the　2D　stretching　flow　of　a　hybrid　nanofluid　over　a　curved　surface　influenced　by　a　magnetic　field　and　reactions.　A　steady　laminar　flow　model　is　created　with　curvilinear　coordinates,　considering　thermal　radiation,　suction,　and　magnetic　boundary　conditions.　The　nanofluid　is　made　of　water　with　copper　and　MWCNTs　as　nanoparticles.　The　equations　are　transformed　into　nonlinear　ODEs　and　solved　numerically.　The　model’s　accuracy　is　confirmed　by　comparing　it　with　published　data.　Results　show　that　fluid　velocity　increases,　temperature　decreases,　and　concentration　increases　with　the　curvature　radius　parameter.　The　hybrid　nanofluid　is　more　sensitive　to　magnetic　field　changes　in　velocity,　while　the　nanofluid　is　more　sensitive　to　magnetic　boundary　coefficient　changes.　These　insights　can　optimize　heat　and　mass　transfer　in　industrial　processes　like　chemical　reactors　and　wastewater　treatment.