May 13 (Reuters) - Sigma Pharmaceuticals Ltd (SIP) :
- A proportion of class action settlement reached in 2012 was funded by insurers and subject to right to "claw- back" in certain circumstances
- Sigma and AIG have subsequently agreed to settle AIG's claim for reimbursement for $12.5 million
- This has continued to be recognised as a contingent liability in Sigma's accounts
- AIG has notified Sigma of its intention to exercise this right
- Says this settlement has no ongoing implications for Sigma's business
- Due to settlement, there will be a one-off $8.8 million impact on Sigma's reported net profit after tax
