Earlier quoted context omitted.
Not if they are already known.
Original statement from the annual report was "Barring unexpected challenges with Gigafactory Shanghai, we are targeting annualized Model 3 output in excess of 500,000 units sometime between Q4 of 2019 and Q2 of 2020." So saying "we'll produce 500k cars in 2019" is a lot of new information: - it's now definitely 2019, not Q2 2020 - it's 500k total, not just "annualized output" - risk of "unexpected challeges" in Shan…
By itself it looks like new information. But once you consider it's a typical post on twitter, it's quite plausible that it's a botched quotation.
The agreement pertains to posts that "contain, or reasonably could contain, material information". Sounds like it needs [a likelihood of] actual material information to count.
(This is all assuming that "material information" is info that's not already widely publicly distributed. In other words I am assuming that a tweet of "Tesla makes cars." would not violate the agreement.)
(Also, none of this precludes him getting in trouble for a misleading tweet, entirely separately from whether he violated this agreement.)