Dear Ekalat,
it is correct to say that peak months need always be sampled during SMETA initial audits. In case of follow up audits, the requirement is to check 2 new months of records.
In this case, auditor should have checked June 2014 and July 2014. During follow up audits, we can't be reviewing records earlier than corrective action.
We need to update the audit reports with your decision whether NC can be signed off, based on sample reviewed from June-July 2014. If necessary, please integrate samples.
For the second issue raised by Unilever, your relevant NC includes various items while the quoted legal requirement is too generic: "Notification of Ministry of Industry, Re: Industrial Waste Management B.E. 2548".
I believe Unilever and supplier requires a quote/extract from the law that details clearly what requirements were violated in this case.
For example, NC raised = "Annual Waste Disposal Report 2013 is not yet prepared and submitted."
Legal requirement could be "Notification of Ministry of Industry, Re: Industrial Waste Management B.E. 2548 requires annual submission of annual waste disposal report to government agency XYZ".