Golden Moth Chemical is an industrial chemical manufacturing company based in Albuquerque and owned by Chinese businessman Duane Chow. Golden Moth Chemical was a chemical supplier for Gustavo Fring's organization, primarily supplying honey extract to Fring's superlab for the purpose of manufacturing methamphetamine.
The company's logo is a stylized golden bee, seen on many of the barrels in the superlab and at Madrigal's warehouse. Although the company is called "Golden Moth" the Hanzi in the logo is蜂, which is Chinese for bee, wasp, or hornet.
The serial number on those barrels 00892-B can be read as a hexadecimal RGB code, and #00 89 2B is the signature Breaking Bad green color.
After the fall of Gus' Drug Empire and Chow's murder, Mike recruited the help of Lydia Rodarte-Quayle, an executive of Madrigal Electromotive , a German shipping conglomerate that had supplied Golden Moth Chemical with methylamine. Ron Forenall was in charge of the Houston warehouse of Madrigal Electromotive until he was taken into custody by the DEA and police. Later, Jesse Pinkman and Lydia went into the warehouse and used a forklift to grab a barrel of methylamine, but discovered that there was a GPS tracker affixed to the bottom of the barrel ("Fifty-One").
Although in this Season Jesse picked up a barrel of methylamine, previous barrels actually packed honey extract instead of methylamine, which contains benzoic acid used to produce phenylacetic acid. In S4E10 Salud, Jesse said to Gus "I get my benzoic acid from the barrel with the bee on it".