BRIEF-African Rainbow Minerals expects HEPS for the six months ended Dec. 31 to rise to between 1,025 and 1,130 cents per share

JOHANNESBURG, Feb 20 (Reuters) - African Rainbow Minerals Ltd ARIJ.J :

* HEPS for the six months ended December 31 are expected to rise to between 1025 and 1130 cents per share

* Delays experienced in ramp-up of lubambe copper mine also had negative effect on results

* Unrealised mark-to-market loss on Harmony Gold Mining investment impacted co's basic earnings

* Sees basic earnings at between 760 and 820 cents per share

* Increase in heps due to higher iron ore prices and a weakening of the rand versus the US dollar

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