In mid-April, I used several long English tweets to discuss why we should focus on upstream semiconductor equipment, naming three companies: NAURA, AMEC, and ACM Research, ranging from platform-type to vertical-type to technology differentiation, going through their product lines and financial data one by one.

In mid-May, I wrote two more long tweets about the equipment supply chain and material consumables supply chain in ChangXin Memory Technologies' capacity expansion cycle, from etching to thin film deposition to cleaning to CMP, to chemicals, targets, electronic specialty gases, polishing slurries, and photoresist, mapping each link to specific companies and localization rates.
Over the past two months, I have been clearly bullish on semiconductor equipment and consumables. How has this trend performed? Those who follow me have seen it.
If you have only recently started following me, I suggest scrolling back. Old friends, please help retweet.