WARSAW, July 31 (Reuters) - Poland's JSW  
   JSW.WA
   , the European Union's largest coking coal miner, said it had signed an agreement with four Polish financial institutions to manage a programme to issue zloty and dollar-denominated bonds totalling about $388 million.     The company had said in June it planned to issue bonds worth up to $774 million to finance its acquisition of coal miner Knurow-Szczyglowice.  
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        The agreed programme is open to the end of this year for JSW to sell up to 700 million zlotys ($224 million) of bonds with maturities ranging from 29 to 77 months and up to $164 million of bonds from 22 to 77 months, the company said on Thursday.     JSW agreed in April to buy Knurow-Szczyglowice from the Kompania Weglowa mining group, the EU's biggest coal miner, for 1.49 billion zlotys.     Knurow-Szczyglowice had an output of 2.04 million tonnes in the first half of 2013, an amount equivalent to one third of JSW's total production of 6.84 million tonnes.     The financial institutions supporting the bond programme are PKO BP, ING BSK, BGK and PZU FIZ Aktywow Niepublicznych BIS 1.($1 = 3.1210 Polish Zlotys)   (Reporting by Anna Koper; editing by Jane Baird and Keiron Henderson)  ((pawel.florkiewicz@thomsonreuters.com)(+48 22 6539700)(Reuters Messaging: pawel.florkiewicz.reuters.com@thomsonreuters.net))  Keywords: POLAND JSW/DEBT