Avance E.SW

French to English Bus/Financial Human Resources Pay slip

This is a French pay slip enumerating the contributions of the employer (cadre: the manager): for Health, Retirement pensions, other employers' contributions (taxable and non taxable CSG/CRDS (general social security contribution/ social security debt repayment contribution), meal vouchers (tickets restaurant patron.)
After these comes "Réintégration mutuelle" (I think it could be referring to a "mutuelle d'entreprise")

The above are non taxable contributions (whatever that means).

Then under TAXABLE contributions is
8012 Reprise AN ESPF
8028 Retenue mutuelle
8092 Prélèvement ESP
8100 Arrondi ESPP +
8117 Prélèvement PEE
8418 *Avance E.SW*
8670 Tickets restaurant

Thanks for any help you can give!