The phrase "a material portion of" is correct and usable in written English.
It can be used to refer to a significant or substantial part of something, often in legal, academic, or formal contexts.
Example: "The report highlighted a material portion of the data that was previously overlooked in the analysis."
Alternatives: "a significant part of" or "a substantial portion of".
Daley said households held a material portion of their wealth outside the super system so they had the option to use it before they turned 60, and because they were nervous the government may change the rules before they retired.
"In our worst case scenario involving full sanctions, a material portion of the listed stock market in Russia could become uninvestible for many investors".
Donations of Google stock actually made up a material portion of contributions – 681 shares were donated in fiscal 2007 (worth about $315,000 based on the current stock price).
In China, Farmer said consumers in smaller cities, where Lenovo's PC growth is strongest, are spending a material portion of their savings on computer purchases and these consumers demand to shop for PC products in stores.
YouTube is a huge business for Alphabet, but it can't readily and legitimately absorb a material portion of TV's $69B of advertising spend.
Some selection bias among women with a family history of venous thromboembolism is possible but is unlikely to account for a material portion of the effect, as idiopathic venous thromboembolism is not common.
In other words, the prosecution has the burden of proving each material portion of an offense occurred by a very high threshold.
"Material portions" of the account of a key witness in the case, Brown's friend Dorian Johnson, "lack credibility," the Justice Department report states.
This further increases the averaging down over time as VCs continue to do their pro rata (or more) and forces early-stage investors to invest material portions of their funds at valuation levels where historically they were sellers.
AE -- provided expertise on clinical informatics, helped analyze findings, and wrote material portions of this manuscript SS - coordinated and facilitated the focus groups at the alternate site, and had editing responsibility for this manuscript.
Once the building materials portion of the business is well established, the website will expand to include an online store.
