TECHNOLOGY FOCUS - POLYMERS - Preferred Particle : The easily volatile foaming agent comprises 15 - 60 wt% of iso-pentane, 85 - 40 wt% of n-pentane and 0 - 20 wt% of butane and/or propane. The zinc stearate is produced by a direct method. The foamable styrenic resin particles are coated with 0.01 - 0.5 pts wt of a fatty acid amide represented by general formula (1) and/or a fatty acid bis-amide represented by general formula (2), and 0.2 - 0.5 pts wt of a fatty acid metallic salt.R1 = aliphatic hydrocarbon group ;R2, R3 = aliphatic hydrocarbon group ;R4 = divalent aliphatic hydrocarbon group or aromatic hydrocarbon groupIn (1) and (2), R1, R2 and R3 have a carbon number of 7 - 23 (preferably 17). In (2), R4 has a carbon number of 1 - 8. At least one of the amide of the fatty acid represented by general formula (1) and/or the fatty acid bis-amide represented by general formula (2), is a stearate amide and/or ethylene bis-stearate amide. The fatty acid metallic salt is produced by a direct method, and is zinc stearate. The foamable styrenic resin particles have a particle diameter of 0.2 - 0.6 mm. WIDER DISCLOSURE - Pre-foamed particles are obtained by pre-foaming the invented foamable styrenic resin particles. A foamed molded article is obtained by foam-molding the invented pre-foamed particles.    EXAMPLE - A solution comprising benzoyl peroxide (3.6 g) and 1,2-bis(t- butyl peroxy)-3,3,5-trimethyl cyclohexane (3.0 g), which were dissolved in styrene monomers (1280 g), was added to a mixture of pure water (1.5 liter), Ca3(PO4)2 (9.7 g), a 1 wt% alpha-olefin sulfonate-Na solution (15 ml), NaCl (1.7 g) and styrene resin particles (427 g), and the mixture was subjected to polymerization at 120 degreesC for 3 hours. A foaming agent comprising 30 wt% of isopentane and 70 wt% of n- pentane was added to the resulting polymer particles so as to obtain foamable styrenic resin particle. The obtained foamable styrenic resin particles were subjected to pre- foaming so as to obtain pre-foamed particles. The pre-foamed particles were foam- molded into a cup. The pre-foamed particle had excellent moldability, and the cup had excellent strength and excellent printability, and prevented components of the contents from permeating out.