Teaser 2803: Easy as ABC

From The Sunday Times, 12th June 2016 [link]

George and Martha have replaced the digits 0 to 9 by the letters A to J in some order. George then noted a neat product, namely:

AB × CDE = FGHIJ

Then Martha noted a neat sum, namely:

AB + CD + EF + GH + IJ = CCC

What, in order, are the values of the letters A to J?

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