BRIEF-Santander aims for UK dividend payout ratio of 50 pct in 2018
Sept 23 (Reuters) - Spain's Santander
* Says aims for return on tangible equity of 12-14 percent in UK business for 2018
* Says aims for dividend payout ratio of 50 percent in 2018 in UK business
* Says aims for return on tangible equity in Brazil of around 17 percent in 2018 Further company coverage: (Reporting By Sonya Dowsett)
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