EX-21 3 iboc-20171231ex21ca519ab.htm EX-21

Exhibit 21

List of Subsidiaries

Subsidiaries of International Bancshares Corporation

Name |  | State of Incorporation or Organization |  | Business |  | % of Ownership |
IBC Subsidiary Corporation |  | Delaware |  | Bank Holding Company |  | 100 | %
IBC Trading Company |  | Texas |  | Export Trading |  | 100 | %
IBC Capital Corporation |  | Texas |  | Investments |  | 100 | %
IBC Charitable and Community Development Corporation |  | Texas |  | Community Development |  | 100 | %
Premier Tierra Holdings, Inc. |  | Texas |  | Liquidating Subsidiary |  | 100 | %

Subsidiaries of IBC Subsidiary Corporation

Name |  | State of Incorporation or Organization |  | Business |  | % of Ownership |
International Bank of Commerce |  | Texas |  | State Bank |  | 100 | %
Commerce Bank |  | Texas |  | State Bank |  | 100 | %
International Bank of Commerce, Zapata |  | Texas |  | State Bank |  | 100 | %
International Bank of Commerce, Brownsville |  | Texas |  | State Bank |  | 100 | %
International Bank of Commerce, Oklahoma |  | Oklahoma |  | State Bank |  | 100 | %
Gulfstar Merchant Banking I, Ltd. |  | Texas |  | Merchant Banking |  | 70 | %
Gulfstar Merchant Banking II, Ltd. |  | Texas |  | Merchant Banking |  | 70 | %
Gulfstar Merchant Banking III, Ltd. |  | Texas |  | Merchant Banking |  | 50 | %
Gulfstar Merchant Banking IV, Ltd. |  | Texas |  | Merchant Banking |  | 50 | %