Section 6
SEC. 6. The banks organized under this Act may secure additional capital from the Philippine National Bank in its discretion in the form of a loan at a preferential rate of interest on first mortgage or other good security and under such other terms and conditions as may be fixed by the Philippine National Bank: Provided, That banks indebted to the Philippine National Bank shall set aside from their net profits, at each annual closing of accounts, a sum not less than twenty per centum of their net profits, until the amounts so set aside shall be equal to fifty per centum of the outstanding loan: Provided, further, That the amounts so set aside may be invested in securities or investments approved by the Philippine National Bank.