塘沽

塘沽	Táng gū	Tanggu former district of Tianjin, now part of Binhai subprovincial district 滨海新区
塘	táng	dyke / embankment / pool or pond / hot-water bathing pool
沽	Gū	abbr. for Tianjin 天津 (also 津沽)
沽	gū	to buy / to sell