As Mr. Gwozdecky indicated earlier, of course our hope is that, strategically speaking, the effect will be to push the North Korean government to revisit its approach.
We know it's a difficult task, but it is still one way to clearly explain the world's disapproval of its approach. There is also an economic effect, more specifically in terms of the sanctions that have just been imposed, because those sanctions affect its trade with China, especially the trade of petroleum products. So that's quite a strong point of pressure.
Our hope is that the North Korean regime will begin to understand that even that privileged relationship, which is vital from a foreign trade perspective, is now under pressure. China has not agreed to close the pipe completely, but it is still a very strong message, I think, because, right now, North Korea depends almost entirely on China for petroleum products. The same goes for foreign workers.
Roughly speaking, we estimate that the recent sanctions will cut almost one-third of North Korea's trade revenue. How far should this go? It is a difficult and delicate question, and the answer depends a great deal on China. China has already shared its concerns about a potential economic crisis and a collapse of the regime if we press too hard. So there would be a lot of humanitarian implications not only for North Korea, but also for China, of course.
That's one of China's concerns. It's certainly an issue that a number of our allies, particularly the Americans, often have to address when it comes to China. We also do so. We have discussed this issue at very high levels with China. We will continue to do so.