1. Iran's Hattam Ambia Central Command issued a statement saying that the US is threatening to attack Iran's nuclear facilities and sensitive centers. Once the US military takes such action, Iran will regard it as an expansion of regional war, and all the interests of the US and its allies in the region will be the target of a strong attack by Iran's armed forces. 2. US Secretary of Defense Hegseth said that the US war against Iran has so far cost 37.5 billion US dollars, which is higher than previously announced estimates. 3. On July 21, local time, international oil prices rose to the highest level in five weeks due to the escalation of mutual attacks between the US and Iran and the threat of the Houthis in Yemen to block Saudi Arabian shipping. The August contract settlement price of WTI crude oil futures closed up 2.02%, while the September contract settlement price of Brent crude oil futures closed up 2.01%. 4. US President Trump will introduce new tariffs on dozens of countries as soon as this week. US Trade Representative Jamison Greer hinted in an interview on the same day that the US federal government will soon introduce a new tariff policy to replace the 10% global import tariff which is about to expire. 5. Yemen's Houthis warned international shipping companies on the 20th that ships trading with Saudi ports may face military attacks, further expanding the scope of their previously announced maritime embargo against Saudi Arabia. 6. Canadian Prime Minister Mark Carney said that after the US tariffs were announced, he had spoken Mandarin with US President Donald Trump. Carney also said that if it takes effect, Canada will consider all coping options. 7. US President Trump said on the same day that the US will “soon” launch an attack on Iran's “Haoshan” underground nuclear facility south of Natanz, and that the strike will be “very intense.” While meeting with visiting Lebanese President Aoun at the White House, he said that if Yemen's Houthis blocks the Red Sea, the US will take action. 8. OpenAI announced on July 21 that the number of active weekly users of its AI smart products — the programming tool Codex and the general task tool ChatGPT Work — has surpassed 10 million, almost double that of earlier this month. 9. On Tuesday, Nvidia officially released the details of the data center CPU Vera, including chip specifications, benchmark data and architecture information, which can be fully evaluated by potential customers. Nvidia representatives revealed that the Vera chip was delivered to customers in June, and buyers include OpenAI, Anthropic, and SpaceX. 10. Ultramicrocomputer said on Tuesday that its profit margin for the June quarter was higher than previously expected, and new orders surged. The gross margin for the quarter and adjusted gross margin are expected to be between 15% and 17%, which is a significant increase from the 8.2% to 8.4% forecast range given by management in May. 11. The sales restrictions on SpaceX's approximately 9115 million shares held by insiders will be lifted on August 6, corresponding to a market value of about 116 billion US dollars. SpaceX lifted the ban in batches. By the end of the year, the total number of tradable shares will soar from about 639 million shares to 5.33 billion shares.

1. Iran's Hattam Ambia Central Command issued a statement saying that the US is threatening to attack Iran's nuclear facilities and sensitive centers. Once the US military takes such action, Iran will regard it as an expansion of regional war, and all the interests of the US and its allies in the region will be the target of a strong attack by Iran's armed forces. 2. US Secretary of Defense Hegseth said that the US war against Iran has so far cost 37.5 billion US dollars, which is higher than previously announced estimates. 3. On July 21, local time, international oil prices rose to the highest level in five weeks due to the escalation of mutual attacks between the US and Iran and the threat of the Houthis in Yemen to block Saudi Arabian shipping. The August contract settlement price of WTI crude oil futures closed up 2.02%, while the September contract settlement price of Brent crude oil futures closed up 2.01%. 4. US President Trump will introduce new tariffs on dozens of countries as soon as this week. US Trade Representative Jamison Greer hinted in an interview on the same day that the US federal government will soon introduce a new tariff policy to replace the 10% global import tariff which is about to expire. 5. Yemen's Houthis warned international shipping companies on the 20th that ships trading with Saudi ports may face military attacks, further expanding the scope of their previously announced maritime embargo against Saudi Arabia. 6. Canadian Prime Minister Mark Carney said that after the US tariffs were announced, he had spoken Mandarin with US President Donald Trump. Carney also said that if it takes effect, Canada will consider all coping options. 7. US President Trump said on the same day that the US will “soon” launch an attack on Iran's “Haoshan” underground nuclear facility south of Natanz, and that the strike will be “very intense.” While meeting with visiting Lebanese President Aoun at the White House, he said that if Yemen's Houthis blocks the Red Sea, the US will take action. 8. OpenAI announced on July 21 that the number of active weekly users of its AI smart products — the programming tool Codex and the general task tool ChatGPT Work — has surpassed 10 million, almost double that of earlier this month. 9. On Tuesday, Nvidia officially released the details of the data center CPU Vera, including chip specifications, benchmark data and architecture information, which can be fully evaluated by potential customers. Nvidia representatives revealed that the Vera chip was delivered to customers in June, and buyers include OpenAI, Anthropic, and SpaceX. 10. Ultramicrocomputer said on Tuesday that its profit margin for the June quarter was higher than previously expected, and new orders surged. The gross margin for the quarter and adjusted gross margin are expected to be between 15% and 17%, which is a significant increase from the 8.2% to 8.4% forecast range given by management in May. 11. The sales restrictions on SpaceX's approximately 9115 million shares held by insiders will be lifted on August 6, corresponding to a market value of about 116 billion US dollars. SpaceX lifted the ban in batches. By the end of the year, the total number of tradable shares will soar from about 639 million shares to 5.33 billion shares.