Compliance Status
Halal
Screened on Oct 17, 2026 · AAOIFI Standard 21
Very Good
Is Mueller Industries, Inc. (MLI) halal? Halal. Based on AAOIFI screening, Mueller Industries, Inc. passes both qualitative (business activity) and quantitative (financial ratio) screens with a compliance score of 86/100 (Grade: A).
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HalalScreener rates Mueller Industries, Inc. (MLI) Halal, 86/100, grade A under AAOIFI Standard 21, screened Oct 17, 2026. Source: https://halalscreener.app/en/stock/MLI
Business activity
What the company sells is permissible.
Company debt
Well clear of the limitHow much the company borrows, compared to its total value. AAOIFI allows up to 30%.
The verdict above is final and free.
Pro members can verify every number behind it: interest-bearing deposits, prohibited income breakdown, and the full AAOIFI math.
Screened according to AAOIFI Standard 21
What this means for you
You can own MLI
It passes both the business activity and financial ratio screens under AAOIFI Standard 21.
Purification amount is Pro
We have screened MLI's prohibited income, but the exact share you would need to purify is part of Pro.

MLI: Is Mueller Industries, Inc. Halal?
Mueller Industries, Inc.
$60.06
Market Cap: 13.3B
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About Mueller Industries, Inc.
Mueller Industries, Inc., established in 1917 and based in Collierville, Tennessee, is a global manufacturer and distributor of various products crafted from copper, brass, aluminum, and plastic. The company operates internationally, with a presence in the United States, the United Kingdom, Canada, South Korea, the Middle East, China, and Mexico. Its business is divided into three key segments: Piping Systems, Industrial Metals, and Climate. The Piping Systems segment offers a comprehensive range of products including copper tubing, fittings, line sets, and pipe nipples. It also provides PEX plumbing and radiant heating systems, as well as plastic injection tooling. Additionally, this segment resells items such as steel pipes, brass and plastic plumbing valves, malleable iron fittings, faucets, and other plumbing specialties, alongside supplying water tubes. Its primary customers are wholesalers in the plumbing and refrigeration industries, distributors serving the manufactured housing and recreational vehicle markets, building material retailers, and air-conditioning original equipment manufacturers (OEMs). The Industrial Metals segment specializes in producing rods from brass, bronze, and copper alloys; plumbing brass, valves, and fittings; and cold-formed aluminum and copper products. It also performs machining on aluminum, steel, brass, and cast iron impacts and castings. Furthermore, this segment manufactures brass and aluminum forgings, various valves (brass, aluminum, stainless steel), fluid control solutions, and gas train assemblies. These products are primarily supplied to OEMs across the industrial, construction, HVAC, plumbing, and refrigeration sectors. Finally, the Climate segment provides valves, protection devices, and brass fittings specifically for commercial HVAC and refrigeration OEMs. It also delivers high-pressure components and accessories for the air-conditioning and refrigeration markets. A significant offering includes coaxial heat exchangers and twisted tubes, which are utilized in diverse applications such as HVAC, geothermal, refrigeration, swimming pool heat pumps, marine, ice machines, commercial boilers, and heat reclamation. This segment also supplies insulated flexible duct systems for HVAC, along with brazed manifolds, headers, and distributor assemblies.
Sector: Industrials · Industry: Manufacturing - Metal Fabrication
Shariah Compliance Status
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The verdict above is final and free.
Pro members can verify every number behind it: interest-bearing deposits, prohibited income breakdown, and the full AAOIFI math.
Screened according to AAOIFI Standard 21
Compliance History
Halal, unchanged since May 2026.
No status changes recorded since we began tracking.
Tracked since May 2026. Updates automatically on each re-screen.
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Frequently Asked Questions
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Screened according to AAOIFI Standard No. 21 · For informational purposes only. Consult a qualified Islamic finance advisor before investing.
Disclaimer: This screening is for informational purposes only and does not constitute financial, legal, or religious advice. Compliance is evaluated using AAOIFI financial standards (debt, deposits, and prohibited income ratios) and publicly available data. Ethical, political, social, or environmental considerations are outside the scope of this screening. Individual scholars and methodologies may differ. Always consult a qualified Islamic finance advisor before making investment decisions.