LAGOS (Reuters) - Sterling Bank (>> Sterling Bank PLC) will abandon plans to buy a rival because of the high costs of doing an acquisition and focus instead on organic growth driven by retail customers, its chief financial officer said.

Sterling's strategic plan had been to buy another Nigerian bank, based on the expectation that a 30 percent fall in the value of the naira last year would put pressure on banks to consolidate to recapitalise.

Abubakar Suleiman, chief finance officer, told Reuters that Sterling was now pursuing organic-led growth as most rivals were too expensive and did not offer many merger benefits that would add value.

The mid-sized bank ended talks to buy Keystone Bank last year but said at the time it wanted to raise funds as it looked at other targets.

"I don't see any candidate right now ... and nobody is selling cheap, so it's probably easier to grow organically," he told Reuters by telephone.

Several other Nigerian banks have also shifted their business models after low crude prices helped to push the economy into its first recession in a quarter of a century.

Wema Bank (>> Wema Bank Plc) is focusing on attracting more retail customers via digital banking and Fidelity Bank is also looking to boost retail customers, while FCMB (>> FCMB Group PLC) has closed branches.

Sterling had hoped that an official naira devaluation would push rivals to seek fresh equity capital ... But "no material devaluation has happened yet," Suleiman said, adding that it was now unlikely assuming Nigeria continues to build reserves.

The naira lost a third of its official value last year and has been trading at a premium on the black market due to dollar shortages, prompting the central bank to effectively devalue it for private individuals.

Shares in Sterling Bank traded flat at 0.73 naira on Friday after falling 4 percent since the start of January. The shares shed 58.5 percent last year.

Suleiman said Sterling would issue a 27 billion naira (72.44 million pounds) bond this year to boost lending. He said the bank expected to get clarity on the economy by the end of the quarter, including interest rates. He said the bank raised only 8 billion naira last year via bonds because of high interest rates.

The central bank has kept interest rates high to support the naira but the government has been selling debt at yields below inflation to reduce its borrowing costs, making it difficult for companies to issue bonds.

Suleiman said Sterling would set a loan growth target for 2017 after the bond sale but would look at between five and 10 percent.

The CFO said the bank planned to generate half of its deposits from retail customers by the end of next year from around 35 percent now. He added that the bank was targeting 5 million retail customers by 2020 using digital banking from 1.4 million accounts now.

"A big part of our investment is driven by retail. We are rebalancing the business mix."

(Editing by Jane Merriman)

By Chijioke Ohuocha

Stocks treated in this article : FCMB Group PLC, Sterling Bank PLC, Wema Bank Plc