The response of Dow was to just buy up all the cheap bromine from the cartel and re-sell it and with this strategy he was able to break the cartel price cutting and greatly expand his business. [1][2]
I'm wondering why US oil companies who suffer from SA price cutting still pump oil themselves at a loss rather than use the same strategy as Dow and buy Saudi's oil instead. The situation seems to be largely the same and that would be the "textbook response" to it.
[1] https://www.quora.com/Whats-the-shrewdest-smartest-maneuver-youve-ever-seen-in-business/answer/David-Fry [2] http://www.mackinac.org/article.aspx?ID=31