Allegations of forged signatures and fraudulent food labelling have emerged in the high-profile divorce battle between the now missing Pamela Ling and her estranged husband, Malaysian businessperson Thomas Hah Tiing Siu.

The Edge reported that court documents filed by Ling in Singapore reveal that she has accused Hah of falsely declaring non-halal-certified meat products as halal to exploit lower import duties.

On April 7, two days before her abduction, Ling had reportedly applied for...