Datin Paduka Sarena Cheah Yean Tih ("Datin Paduka Sarena Cheah") started her career with the Sunway Group since 1995 and served under various roles in the Corporate Finance, Internal Audit and Business Development departments. In 2006, she was made General Manager for Sales & Marketing of the Group's Property Development Division before assuming the position of Director of Strategy & Corporate Development in 2009, during which she oversaw the successful merger and integration of Sunway Holdings Berhad and Sunway City Berhad. In 2010 and 2011, Datin Paduka Sarena Cheah was instrumental with the listing of Sunway Real Estate Investment Trust ("Sunway REIT") on Bursa Malaysia as well as the establishment and launch of Jeffrey Cheah Foundation, the nation's first and largest education-focused social enterprise. In May 2013, she was appointed as Joint Managing Director of Property Development Division, Malaysia/Singapore and thereafter, the position of Managing Director of Property Development Division of Sunway in May 2015. She is subsequently promoted to Executive Deputy Chairman with effect from 2 January 2025. 

She is a Board Member of Sunway REIT Management Sdn Bhd, the Manager for Sunway REIT. She is also a non-independent non-executive director of Elite Commercial REIT Management Pte Ltd, the Manager for Elite Commercial REIT, a real estate investment trust listed on Singapore Exchange Securities Trading Limited. She is a Fellow Member of Australian Society of Certified Practising Accountants (ASCPA) and also holds a Capital Markets Services Representative's Licence (CMSRL). She is also a board member of Malaysian Investment Development Authority (MIDA).

She was previously a director of Institute of Corporate Directors Malaysia and Bank of America Malaysia Berhad as well as a member of the National Committee of Real Estate and Housing Developers Association Malaysia (REHDA).

Datin Paduka Sarena Cheah Yean Tih is the child of Tan Sri Sir Dr Jeffrey Cheah Fook Ling who is the Executive Chairman and major shareholder of Sunway Berhad ("Sunway"). She is also the sibling of  Mr Evan Cheah Yean Shin (Alternate Director to Tan Sri Sir Dr Jeffrey Cheah Fook Ling) and a major shareholder of Sunway.

Datin Paduka Sarena Cheah Yean Tih is a substantial shareholder of Sunway Technology Sdn Bhd ("STSB") by virtue of Section 8 of the Companies Act 2016 held through Active Equity Sdn Bhd and parent, in which the business activities of STSB and its subsidiaries comprise information technology solutions providers.

There could be potential conflicts of interest if Sunway Group and STSB group of companies venture into competing business in the future.

Datin Paduka Sarena Cheah Yean Tih holds 6,636,516 ordinary shares and 524,859 Irredeemable Convertible Preference Shares ("ICPS") in Sunway.

She has deemed interest in 3,657,815,620 ordinary shares and 359,614,264 ICPS of Sunway by virtue of Section 8 of the Companies Act 2016 held through Active Equity Sdn Bhd, Sungei Way Corporation Sdn Bhd, Jef-San Enterprise Sdn Bhd, parent and spouse.