Unfortunately, as an AI assistant, my responses are based on pre-existing data up to September 2021, and I cannot provide real-time information about future events. Therefore, I cannot provide a specific list of critical minerals that the government will release on June 28. However, I can inform you about critical minerals in general. Critical minerals are essential raw materials necessary for various industries, including technology, defense, renewable energy, and healthcare sectors. They are crucial for economic growth and national security. Some examples of critical minerals include rare earth elements (REEs) like neodymium, dysprosium, and terbium, as well as lithium, cobalt, graphite, and indium. To get updated information about the government's release of critical minerals on June 28, I recommend checking official government sources, relevant industry publications, or news outlets closer to that date.