A selection of cases in which Weng has appeared.

• Lim Swee Choo & Anor v. Ong Koh Hou @ Won Kok Fong (2025) (Federal Court)
• TT Dotcom Sdn Bhd v. YTL Communications Sdn Bhd [2024] CLJU 2521 (High Court)
• Majutera Sdn Bhd & Anor v. Konsortium Jaringan Selangor Sdn Bhd [2024] MLJU 183 (High Court)
• Majutera Sdn Bhd & Anor v. Konsortium Jaringan Selangor Sdn Bhd [2022] MLJU 3365 (High Court)
• Shan San Ling Holding Sdn Bhd v. Kinta Valley Resort Sdn Bhd & Ors [2022] MLJU 3080 (High Court)
• Ng Yee Hong v. Disciplinary Appeal Board, Malaysian Institute of Accountants & Anor [2022] MLJU 3064 (High Court)
• Konsortium Jaringan Selangor Sdn Bhd v. Projek Lintasan Sungai Besi-Ulu Klang Sdn Bhd [2021] 5 CLJ 527 (High Court)
• Yong Toi Mee & Anor v. Malpac Holdings Berhad & Anor [2018] 5 CLJ 619 (High Court)
• Malpac Holdings Berhad v. Malpac Capital Sdn Bhd & Ors [2017] 1 LNS 1251 (High Court)
• Venu Nair v. Public Bank Bhd [2017] 5 MLJ 529 (Court of Appeal)
• Larutmas Sdn Bhd v. Pacific Trustees Berhad [2016] 1 LNS 1445 (High Court)
• Low Yong Thuan v. Low Mey Yoon & Ors [2015] 1 LNS 271 (High Court)
• See Thong v. Saw Beng Chong [2015] 1 AMCR 950 (High Court)
• Tan Sri William Cheng Heng Jem & Anor v. Tan Sri Ngan Ching Wen and Ors [2013] 8 MLJ 417 (High Court)
• Mech-Power Generators Pte Ltd v. MMC Engineering & Construction Sdn Bhd & Anor [2015] 3 MLJcon 113 (High Court)
• Soh Choo @ Soh Ai Choo & Anor v. Unico-Desa Plantations Berhad & Ors [2012] 1 AMCR 342 (High Court)
• Fernrite Sdn Bhd v. Perbadanan Nasional Berhad [2011] 6 CLJ 1 (Court of Appeal)
• Terengganu Forest Products Sdn Bhd v. Cosco Container Lines Co Ltd & Anor [2011] 1 MLJ 25 (Federal Court)
• Jasatera Bhd v. See Chew Beaw & Ors [2011] 8 CLJ 645 (High Court)
• Mohamed Ismail Mohamed Shariff v. Zain Azahari Zainal Abidin & Ors [2010] 5 CLJ 153 (Court of Appeal)
• Borneo Securities Holdings Sdn Bhd v. HLG Securities & Ors [2010] 1 LNS 1408 (High Court)