Addendum for the following Purchase Requisition Nos:

• P.R. No. 19-0076 – Supply & Delivery of P.E. Tubing for Operations Group – WDD & PLCD
• P.R. No. 19-0077 – Supply & Delivery of PVC Materials for Operations Group – WDD
• P.R. No. 19-0078 – Supply & Delivery of Brass Materials for Operations Group – WDD & PLCD
• P.R. No. 19-0079 – Supply & Delivery of C.I. Materials for Operations Group – WDD
• Addendum No. 2019-004