Magnesium Alloy Products Co.

The Fire

Around 11 a.m. on Tuesday, April 14, 2026, a fire broke out at a commercial building in Compton's industrial corridor on Alameda Street near El Segundo Boulevard. The building houses Magnesium Alloy Products Co., a magnesium and aluminum sand casting foundry.

The blaze produced a massive plume of thick black smoke visible from miles away. ABC7's AIR7 helicopter covered the scene as flames shot from the structure. 85 firefighters responded.

Deputy Chief Reginald Donald of the Compton Fire Department told reporters: "We confined it to one building."

Cause

The fire appears to have been caused by magnesium dust ignition during sanding operations — a well-known industrial hazard in foundry environments.

Worker Victor Degandiaga described the incident: "It's magnesium, so when you spark magnesium, I guess one of the sanders must have sparked some dust, and it's real fast. One guy couldn't get out, and he got all full of soot and black smoke, he inhaled a lot of it, so they took him in an ambulance."

Deputy Chief Donald confirmed the industrial hazard context: "Dealing with magnesium, you know, it does get hot."

No arson investigation has been announced. The cause is consistent with ordinary industrial accident risk in magnesium foundry operations.

Ownership & Operations

Magnesium Alloy Products Co. is a private company specializing in magnesium and aluminum sand castings, located at 2420 N Alameda St, Compton, CA 90222. The company operates as a foundry producing industrial metal castings.

Injuries

47 workers were inside the building at the time of the fire. All have been accounted for. One worker was transported by ambulance to an area hospital for smoke/soot inhalation evaluation; no life-threatening injuries were reported.

Labor Connection

None. The fire has no reported connection to labor disputes, wage protests, or worker activism. It is an industrial accident consistent with the hazardous properties of magnesium metal.

Social Media Reaction

This fire was shared on Threads in the context of the ongoing wave of warehouse fires following the April 7 Kimberly-Clark arson in Ontario, CA. Two posts on April 14 circulated the story:

• Threads user @alex.nick.jungle captioned it: "Another warehouse fire has broken out this time in Compton, California. This is the 7th warehouse fire in the past week alone."
• Threads user @kjybecauseisaidso posted: "fire 🔥 breaks out at warehouse in Compton, CA"

Both posts present the fire as part of a pattern without asserting arson or labor motivation. The social media framing overstates the connection — this is an industrial accident at a foundry, not a warehouse fire in the labor protest sense, and there is no indication of arson.