Excel maco to copy and append from different lists

I have a spreadsheet with a list of part numbers and a list of plant codes that I need to generate a new sheet where I have the list of part numbers and the same plant code for all of the part numbers, then I need to append the same list of part numbers with the next plant code.  Can someone help me with a macro or some way to accomplish this as I have over 70 plant codes and 12k part numbers.  Example below.  I have two separate sheets, one that has all of the part numbers and one that has the list of plant codes

PartNumber     Plant
12345                WW01
22322                WW01
22333                WW01
33444                WW01
44333                WW01
12345                WW99
22322                WW99
22333                WW99
33444                WW99
44333                WW99
12345                US01
22322                US01
22333                US01
33444                US01
44333                US01
12345                US02
22322                US02
22333                US02
33444                US02
44333                US02
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Martin LissOlder than dirtCommented:
Please attach a sample workbook that shows a few examples of what you want the output to look like.
FairfieldAuthor Commented:
The desired output is what I put in the question as an example.  Once column for part number and one for plant.
Martin LissOlder than dirtCommented:
Can you attach or show what the part numbers and plant codes sheets look like?
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FairfieldAuthor Commented:
Here is the sample spreadsheet.  As I said, there are over 12k part numbers and over 40 plant codes.
Martin LissOlder than dirtCommented:
Click the button on the PlantCodes sheet.

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FairfieldAuthor Commented:
Perfect, thanks for the quick solution!
Martin LissOlder than dirtCommented:
You’re welcome and I’m glad I was able to help.

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