public function GetLargestVATObject()
    {
        $oActiveVatList = $this->GetActiveVATList();
        /** @var $oMaxItem TdbShopVat */
        $oMaxItem = null;
        if (is_object($oActiveVatList)) {
            $oMaxItem = $oActiveVatList->GetMaxItem();
        }

        return $oMaxItem;
    }