Refer to the input text as context and select the correct relationship between 'Samsung' and 'Seoul' from the available options.
Options: distribution format, location of formation, platform, business division

Samsung C&T Corp. shares rose as much as 3.6 percent following the ruling, and traded up 2 percent to 67,500 won in Seoul trading as of 11:18 a.m. Cheil Industries rose 3.1 percent while the benchmark Kospi gained 0.8 percent.
location of formation