Macro to concatenate cell contents from subsets of data

804350-150710 P 1 804350-150710 CAP3/16BTV INSTALL: (SCRAP: CAP3/16BTV) (INSTALL: CAP3/16BTV)
804350-150710 P 1 804350-150710 CAP3/16BTV SCRAP:

804350-400680 P 2 804350-400680 45/2 SCRAP: (SCRAP: 45/2) (INSTALL: 50/2)
804350-400680 P 2 804350-400680 50/2 INSTALL:

804350-020810 P 3 804350-020810 50 KVA INSTALL: (SCRAP: 40/4,50 KVA,DG,HG,ANC) (INSTALL: 50/2,50 KVA,DG,HG,ANC)
804350-020810 P 3 804350-020810 50 KVA SCRAP:
804350-020810 P 3 804350-020810 ANC SCRAP:
804350-020810 P 3 804350-020810 ANC INSTALL:
804350-020810 P 3 804350-020810 DG INSTALL:
804350-020810 P 3 804350-020810 DG SCRAP:
804350-020810 P 3 804350-020810 HG INSTALL:
804350-020810 P 3 804350-020810 HG SCRAP:
804350-020810 P 3 804350-020810 40/4 SCRAP:
804350-020810 P 3 804350-020810 50/2 INSTALL:

The data above is a section of a larger dataset. I'm looking for a "macro" to "concatenate" the data, as it appears in the "RESULTANT VALUE", in parentheses. Any assistance is greatly appreciated.