Take context from the input text and decide on the accurate relationship between 'Boeing' and 'SEATTLE' from the options provided.
Options: location of formation, owner of, operator, chairperson

SEATTLE (Reuters) - Boeing Co (BA.N), which loses about $30 million on every 787 Dreamliner passenger jet that leaves the factory, is trying to stem the losses by cutting the use of one of its signature ingredients: titanium.
location of formation