The supplied source item cannot be rewritten to the requested editorial standard. The SOURCE_BODY field contains only a Google News redirect link and the attribution "Ellen MacArthur Foundation" — there is no article text, no figures, no quotes, no dates, and no policy specifics between the delimiters.

Every requirement in the assignment depends on content that is absent. The house style mandates opening with an operating number — a tonnage figure, plant capacity, commodity price per tonne, investment size, or permit deadline. None of those exist in the feed item. The rule against adding information absent from the source makes any 520-to-1000-word treatment impossible without fabrication, and fabricating figures, EU legislative articles, deadlines, or Foundation positions would violate both that rule and basic trade-press accuracy.

What the feed item does establish, at minimum, is this: the Ellen MacArthur Foundation has published or promoted a piece titled "The EU Circular Economy Act: a critical opportunity." That title alone signals an advocacy position on the forthcoming EU Circular Economy Act — a legislative instrument the Commission announced in its 2024–2029 work programme, expected alongside a revised Circular Economy Action Plan. But even that framing draws on context outside the supplied data, and I have no way to verify which specific provisions, targets, or materials the Foundation's piece addresses.

To produce the article properly, the editorial desk should supply one of the following:

1. The full text of the Ellen MacArthur Foundation piece, fetched directly rather than through the Google News redirect.
2. The underlying Foundation publication or press release URL, so the actual policy asks, numeric targets, and deadlines can be cited.
3. Supplementary documents — the Commission's work programme entry, stakeholder consultation responses, or the Foundation's policy brief — against which the piece's claims can be anchored.

Once the full text is available, the rewrite will follow the standing brief: lead with whatever number the Foundation puts forward, separate the Act's built obligations from announced intentions, timestamp every circularity pledge, attribute each claim to the Foundation or the relevant EU institution, and close on the legislative milestone — likely the Commission's formal publication of the Act and its passage through Parliament and Council — that determines what actually binds industry.

No substitute copy appears here. A desk editor who filed 700 confident words off a headline alone would be inventing the news, and that is a firing offence at any outlet this site models itself on.