The banks handling the capital hike are Deutsche Bank and Morgan Stanley, Boersen-Zeitung said, adding both are now working on its prospectus.
HeidelbergCement had announced plans to sell all non-core assets to raise cash and pay down debt after its $16 billion takeover of British rival Hanson in 2007.
The group won a US$12bn lifeline from creditor banks in June, after reporting debt of EUR11.6bn at the end of 2008.
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